## North Carolina Standard Course of Study for Third Grade Math

Determine the One Operation FunctionA one operation function is an equation with only one of the following operations: addition, subtraction, multiplication, or division. Read more...iWorksheets: 3Study Guides: 1
Open Number SentencesWhat Are Open Number Sentences? Open number sentences are equations that give one part of the equation along with the answer. In order to solve an open number sentence, the inverse operation is used. Read more...iWorksheets: 3Study Guides: 1
PatternsA pattern is an order of things repeated over and over. Read more...iWorksheets: 6Study Guides: 1
ProbabilityWhat Is Probability? Probability is the chance that a particular event will occur. There are four different ways to show the probability: One way is to show the certainty: certain, likely, somewhat likely, not likely, impossible. The other three ways are with numbers. Probability word problems worksheet. Read more...iWorksheets: 6Study Guides: 1
Congruent ShapesFreeCongruent shapes are shapes that are the exact same shape and size. Congruent shapes can be rotated or reflected. When 2 shapes are congruent, they have the exact same size and shape. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 1
Solids and FacesYou can use solid shapes to help describe real-world objects. These shapes have surfaces called faces. Read more...iWorksheets: 5Study Guides: 1
SymmetrySymmetry is an exact matching of two parts along a fold line. Read more...iWorksheets: 4Study Guides: 1
Adding MoneyAmounts of money may be written in several different ways. Cents may be written with the ¢ sign and dollars can be written with the dollar sign (\$). When we add money, we add the amounts and place the correct sign on the sum. Read more...iWorksheets: 4Study Guides: 1
Counting MoneyFreeWhat Is Money? Money is what we use to make purchases for our needs and wants. Read more...iWorksheets: 9Study Guides: 1
Giving Change from \$1.00What Is Giving Change? Change is the money you receive back when you purchase an item and give the cashier more than the item cost. To figure out the change you will receive from a purchase, simply subtract the total amount of the purchase from the amount you are giving the cashier. Read more...iWorksheets: 4Study Guides: 1
TemperatureWhat Is Temperature? Temperature is the measure of how hot or cold something is. Temperature is measured with a thermometer. Temperature is measured in degrees Celsius (ºC) or degrees Fahrenheit (ºF). Read more...iWorksheets: 3Study Guides: 1
3 Digit SubtractionWhat Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read more...iWorksheets: 3Study Guides: 1
Double Digit AdditionWhat Is Double Digit Addition? Double digit addition is taking a two digit number (ex. 32) and adding it to another two digit number (ex. 27). The answer of these two addends is known as the sum. Read more...iWorksheets: 4Study Guides: 1
Double Digit SubtractionWhat Is Double Digit Subtraction? Double digit subtraction is taking a number with two digits (ex. 23) and subtracting it from another two digit number (ex. 33). The answer is known as the difference. Read more...iWorksheets: 4Study Guides: 1
EstimationWhen you make an estimate, you are making a guess that is approximate. This is often done by rounding. Read more...iWorksheets: 6Study Guides: 1
Greater Than/Less ThanWhat Is Greater Than and Less Than? When a number is greater than another number, this means it is a larger number. The symbol for greater than is >. When a number is less than another number, this means it is a smaller number. The symbol for less than is <. Read more...iWorksheets: 7Study Guides: 1
Number Words to 1,000Numbers can be written in word form. Read more...iWorksheets: 3Study Guides: 1
Odd/Even NumbersWhat is odd number? An odd number is a number that will have a leftover when divided into two equal groups. What is even number? An even number is a number that can be divided into two equal groups without any leftovers. Read more...iWorksheets: 6Study Guides: 1
Ordering and Comparing NumbersWhen you order numbers, you are putting the numbers in a sequence from the smallest value to the largest value. When you compare two numbers, you are finding which number is larger or smaller than the other. Read more...iWorksheets: 5Study Guides: 1Vocabulary Sets: 1
Place ValuePlace value is what each digit is worth. In the number 4,573 there are four thousands, five hundreds, seven tens, and three ones. How to Find the Place Value: In order to find the place value of a number, you can count the number of places from the right. The first number will be the ones place. The next number moving towards the left would be the tens place, and so on. Read more...iWorksheets: 10Study Guides: 1
RegroupingWhat Is Regrouping? Regrouping in addition is used when the sum of the ones place is larger than nine. The tens place of the sum is moved to the top of the tens place column to be added with the others. Read more...iWorksheets: 3Study Guides: 1
Rounding to Nearest 10Rounding makes numbers easier to work with if you do not need an exact number. Rounded numbers are only approximate. You can use rounded numbers to get an answer that is close but does not have to be exact. Read more...iWorksheets: 3Study Guides: 1

### NC.3.OA. Operations and Algebraic Thinking

#### Represent and solve problems involving multiplication and division.

##### NC.3.OA.1. For products of whole numbers with two factors up to and including 10:
###### NC.3.OA.1.b. Illustrate and explain strategies including arrays, repeated addition, decomposing a factor, and applying the commutative and associative properties.
Commutative PropertyThe commutative property of addition says that we can add numbers in any order and get the same sum. Read more...iWorksheets :3Study Guides :1
Commutative/Associative PropertiesUsing the Commutative Property in addition means that the order of addends does not matter; the sum will remain the same. Read more...iWorksheets :3Study Guides :1
Associative PropertyAssociative Property of Addition explains that when three or more numbers are added, the sum is the same regardless of the order in which the numbers are grouped and/or added. Read more...iWorksheets :3Study Guides :1
##### NC.3.OA.2. For whole-number quotients of whole numbers with a one-digit divisor and a one-digit quotient:
###### NC.3.OA.2.a. Interpret the divisor and quotient in a division equation as representing the number of equal groups and the number of objects in each group.
Word ProblemsMultiply and divide, writing number sentences. Read more...iWorksheets :4Study Guides :1
DivisionWhat Is Division? Division is splitting up numbers into equal parts. The process of finding out how many times one number will go into another number. Division is a series of repeated subtraction. The parts of a division problem include the divisor, dividend, quotient and remainder. Read more...iWorksheets :8Study Guides :1
Division/MultiplicationUnderstanding of models for multiplication, place value, and properties of operations (in particular, the distributive property). Read more...iWorksheets :9Study Guides :1
DivisionWhat Is Division? Division is an operation that tells: how many equal sized groups, how many in each group. The number you divide by is called the DIVISOR. The number you are dividing is called the DIVIDEND. And the answer is called the QUOTIENT. Read more...iWorksheets :6Study Guides :1
##### NC.3.OA.3. Represent, interpret, and solve one-step problems involving multiplication and division.
###### NC.3.OA.3.a. Solve multiplication word problems with factors up to and including 10. Represent the problem using arrays, pictures, and/or equations with a symbol for the unknown number to represent the problem.
Word ProblemsMultiply and divide, writing number sentences. Read more...iWorksheets :4Study Guides :1
Problem SolvingWhat Is Problem Solving? Problem solving is finding an answer to a question. How to Problem Solve: Read the problem carefully. Decide on an operation to use to solve the problem. Solve the problem. Check your work and make sure that your answer makes sense. Read more...iWorksheets :4Study Guides :1
###### NC.3.OA.3.b. Solve division word problems with a divisor and quotient up to and including 10. Represent the problem using arrays, pictures, repeated subtraction and/or equations with a symbol for the unknown number to represent the problem.
Word ProblemsMultiply and divide, writing number sentences. Read more...iWorksheets :4Study Guides :1
Problem SolvingWhat Is Problem Solving? Problem solving is finding an answer to a question. How to Problem Solve: Read the problem carefully. Decide on an operation to use to solve the problem. Solve the problem. Check your work and make sure that your answer makes sense. Read more...iWorksheets :4Study Guides :1

#### Multiply and divide within 100.

##### NC.3.OA.7. Demonstrate fluency with multiplication and division with factors, quotients and divisors up to and including 10.
###### NC.3.OA.7.a. Know from memory all products with factors up to and including 10.
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1
MultiplicationMultiplication is similar to adding a number to itself a certain number of times. When multiplying an odd number with an odd number, the product is always an odd number. When multiplying an odd number with an even number or two even numbers, the product is always an even number. Read more...iWorksheets :19Study Guides :1

#### Solve two-step problems.

##### NC.3.OA.8. Solve two-step word problems using addition, subtraction, and multiplication, representing problems using equations with a symbol for the unknown number.
Multi-step Word ProblemsSome word problems require more than one step to solve. These are called multi-step word problems. Read more...iWorksheets :4Study Guides :1
Word ProblemsMultiply and divide, writing number sentences. Read more...iWorksheets :4Study Guides :1
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Problem SolvingWhat Is Problem Solving? Problem solving is finding an answer to a question. How to Problem Solve: Read the problem carefully. Decide on an operation to use to solve the problem. Solve the problem. Check your work and make sure that your answer makes sense. Read more...iWorksheets :4Study Guides :1
Word ProblemsWhat Are Story Problems? Story problems are a bunch of sentences set up to give you information in order to solve a problem. Story problems most often give you all the information needed to solve the problem. They may even include information you do not need at all. Read more...iWorksheets :8Study Guides :1

#### Explore patterns of numbers.

##### NC.3.OA.9. Interpret patterns of multiplication on a hundreds board and/or multiplication table.
SequencingSequencing is when when you count, numbers go in a specific order. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Skip CountingYou can skip count by large numbers such as 25, 50 or 100. Skip counting allows you to count by large numbers following a pattern. Read more...iWorksheets :3Study Guides :1
One More, One LessCount forward by 1 or count backwards by 1. Read more...iWorksheets :3Study Guides :1Vocabulary :1
Counting to 999When you count, you start with the number 1 and stop counting after you count the last object you happen to be counting. Read more...iWorksheets :3Study Guides :1
Skip CountingSkip counting is when you SKIP a number or numbers when counting. Counting by 2s, 3s, 4s, 5, and 10s. Read more...iWorksheets :4Study Guides :1Vocabulary :1
Double Digit Addition without RegroupingSteps to follow when adding a double-digit number:<br> First: Add the two numbers in the ONES place.<br> Second: Add the two numbers in the TENS place. Read more...iWorksheets :5Study Guides :1Vocabulary :1

### NC.3.NBT. Number and Operations in Base Ten

#### Use place value to add and subtract.

##### NC.3.NBT.2. Add and subtract whole numbers up to and including 1,000.
###### NC.3.NBT.2.a. Use estimation strategies to assess reasonableness of answers.
EstimationFreeTo estimate means to make an educated guess based on what you already know. Read more...iWorksheets :4Study Guides :1
###### NC.3.NBT.2.c. Use expanded form to decompose numbers and then find sums and differences.
Expanding NumbersWhat Are Expanding Numbers? An expanding number is taking a larger number apart and showing each number’s total value. Number 5398 in expanded form is 5000 + 300 + 90 + 8. Read more...iWorksheets :3Study Guides :1

#### Generalize place value understanding for multi-digit numbers.

##### NC.3.NBT.3. Use concrete and pictorial models, based on place value and the properties of operations, to find the product of a one-digit whole number by a multiple of 10 in the range 10–90.
Division/MultiplicationUnderstanding of models for multiplication, place value, and properties of operations (in particular, the distributive property). Read more...iWorksheets :9Study Guides :1

### NC.3.NF. Number and Operations – Fractions

#### Understand fractions as numbers.

##### NC.3.NF.1. Interpret unit fractions with denominators of 2, 3, 4, 6, and 8 as quantities formed when a whole is partitioned into equal parts;
###### NC.3.NF.1.a. Explain that a unit fraction is one of those parts.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract DecimalsAddition and subtraction of decimals is like adding and subtracting whole numbers. The only thing we must remember is to line up the place values correctly. Read more...iWorksheets :14Study Guides :1Vocabulary :1
FractionsFractions can show a part of a group or part of a set. Read more...iWorksheets :6Study Guides :1
ProbabilityProbability word problems worksheet. Probability is the chance of whether something will happen or not. If two things have an EQUAL chance of happening, they have the SAME probability. If there are MORE chances of something happening (A) than something else (B), that means there is a HIGHER PROBABILITY of that something (A) happening. Read more...iWorksheets :3Study Guides :1
Number LineA number line is a line that shows any group of numbers in their least to greatest value. Read more...iWorksheets :3Study Guides :1
Pattern BlocksA fraction is a part of a whole of something. Read more...iWorksheets :3Study Guides :1
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsA fraction is a part of a whole. Fractions for 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/10, and 1/12 Read more...iWorksheets :7Study Guides :1Vocabulary :2
Decimals/FractionsExpress decimals as an equivalent form of fractions to tenths and hundredths. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract FractionsWhat Is Addition and Subtraction of Fractions? Addition is combining two or more fractions. The term used for addition is plus. When two or more numbers, or addends, are combined they form a new number called a sum. Subtraction is “taking away” one fraction from another fraction. The term is minus. The number left after subtracting is called a difference. Read more...iWorksheets :4Study Guides :1
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1
FractionsThe top number of a fraction is called the numerator. It shows how many pieces of a whole we are talking about. The bottom number is called the denominator. It shows how many pieces an object was divided into, or how many total pieces we have. Read more...iWorksheets :4Study Guides :1
###### NC.3.NF.1.b. Represent and identify unit fractions using area and length models.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
AlgebraComparing whole numbers, fractions, and decimals means looking at the values of two numbers and deciding if they are greater than, less than or equal to each other. Read more...iWorksheets :4Study Guides :1
FractionsFractions can show a part of a group or part of a set. Read more...iWorksheets :6Study Guides :1
ProbabilityProbability word problems worksheet. Probability is the chance of whether something will happen or not. If two things have an EQUAL chance of happening, they have the SAME probability. If there are MORE chances of something happening (A) than something else (B), that means there is a HIGHER PROBABILITY of that something (A) happening. Read more...iWorksheets :3Study Guides :1
Number LineA number line is a line that shows any group of numbers in their least to greatest value. Read more...iWorksheets :3Study Guides :1
Pattern BlocksA fraction is a part of a whole of something. Read more...iWorksheets :3Study Guides :1
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsA fraction is a part of a whole. Fractions for 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/10, and 1/12 Read more...iWorksheets :7Study Guides :1Vocabulary :2
Decimals/FractionsExpress decimals as an equivalent form of fractions to tenths and hundredths. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract FractionsWhat Is Addition and Subtraction of Fractions? Addition is combining two or more fractions. The term used for addition is plus. When two or more numbers, or addends, are combined they form a new number called a sum. Subtraction is “taking away” one fraction from another fraction. The term is minus. The number left after subtracting is called a difference. Read more...iWorksheets :4Study Guides :1
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1
FractionsThe top number of a fraction is called the numerator. It shows how many pieces of a whole we are talking about. The bottom number is called the denominator. It shows how many pieces an object was divided into, or how many total pieces we have. Read more...iWorksheets :4Study Guides :1
##### NC.3.NF.2. Interpret fractions with denominators of 2, 3, 4, 6, and 8 using area and length models.
###### NC.3.NF.2.a. Using an area model, explain that the numerator of a fraction represents the number of equal parts of the unit fraction.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
AlgebraComparing whole numbers, fractions, and decimals means looking at the values of two numbers and deciding if they are greater than, less than or equal to each other. Read more...iWorksheets :4Study Guides :1
FractionsFractions can show a part of a group or part of a set. Read more...iWorksheets :6Study Guides :1
ProbabilityProbability word problems worksheet. Probability is the chance of whether something will happen or not. If two things have an EQUAL chance of happening, they have the SAME probability. If there are MORE chances of something happening (A) than something else (B), that means there is a HIGHER PROBABILITY of that something (A) happening. Read more...iWorksheets :3Study Guides :1
Number LineA number line is a line that shows any group of numbers in their least to greatest value. Read more...iWorksheets :3Study Guides :1
Pattern BlocksA fraction is a part of a whole of something. Read more...iWorksheets :3Study Guides :1
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsA fraction is a part of a whole. Fractions for 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/10, and 1/12 Read more...iWorksheets :7Study Guides :1Vocabulary :2
Decimals/FractionsExpress decimals as an equivalent form of fractions to tenths and hundredths. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract FractionsWhat Is Addition and Subtraction of Fractions? Addition is combining two or more fractions. The term used for addition is plus. When two or more numbers, or addends, are combined they form a new number called a sum. Subtraction is “taking away” one fraction from another fraction. The term is minus. The number left after subtracting is called a difference. Read more...iWorksheets :4Study Guides :1
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1
FractionsThe top number of a fraction is called the numerator. It shows how many pieces of a whole we are talking about. The bottom number is called the denominator. It shows how many pieces an object was divided into, or how many total pieces we have. Read more...iWorksheets :4Study Guides :1
###### NC.3.NF.2.b. Using a number line, explain that the numerator of a fraction represents the number of lengths of the unit fraction from 0.
Number LineA number line is a line that shows any group of numbers in their least to greatest value. Read more...iWorksheets :3Study Guides :1
##### NC.3.NF.3. Represent equivalent fractions with area and length models by:
###### NC.3.NF.3.b. Explaining that a fraction with the same numerator and denominator equals one whole.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract DecimalsAddition and subtraction of decimals is like adding and subtracting whole numbers. The only thing we must remember is to line up the place values correctly. Read more...iWorksheets :14Study Guides :1Vocabulary :1
FractionsFractions can show a part of a group or part of a set. Read more...iWorksheets :6Study Guides :1
ProbabilityProbability word problems worksheet. Probability is the chance of whether something will happen or not. If two things have an EQUAL chance of happening, they have the SAME probability. If there are MORE chances of something happening (A) than something else (B), that means there is a HIGHER PROBABILITY of that something (A) happening. Read more...iWorksheets :3Study Guides :1
Number LineA number line is a line that shows any group of numbers in their least to greatest value. Read more...iWorksheets :3Study Guides :1
Pattern BlocksA fraction is a part of a whole of something. Read more...iWorksheets :3Study Guides :1
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsA fraction is a part of a whole. Fractions for 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/10, and 1/12 Read more...iWorksheets :7Study Guides :1Vocabulary :2
Decimals/FractionsExpress decimals as an equivalent form of fractions to tenths and hundredths. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract FractionsWhat Is Addition and Subtraction of Fractions? Addition is combining two or more fractions. The term used for addition is plus. When two or more numbers, or addends, are combined they form a new number called a sum. Subtraction is “taking away” one fraction from another fraction. The term is minus. The number left after subtracting is called a difference. Read more...iWorksheets :4Study Guides :1
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1
FractionsThe top number of a fraction is called the numerator. It shows how many pieces of a whole we are talking about. The bottom number is called the denominator. It shows how many pieces an object was divided into, or how many total pieces we have. Read more...iWorksheets :4Study Guides :1
###### NC.3.NF.3.c. Expressing whole numbers as fractions, and recognize fractions that are equivalent to whole numbers.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract DecimalsAddition and subtraction of decimals is like adding and subtracting whole numbers. The only thing we must remember is to line up the place values correctly. Read more...iWorksheets :14Study Guides :1Vocabulary :1
FractionsFractions can show a part of a group or part of a set. Read more...iWorksheets :6Study Guides :1
ProbabilityProbability word problems worksheet. Probability is the chance of whether something will happen or not. If two things have an EQUAL chance of happening, they have the SAME probability. If there are MORE chances of something happening (A) than something else (B), that means there is a HIGHER PROBABILITY of that something (A) happening. Read more...iWorksheets :3Study Guides :1
Number LineA number line is a line that shows any group of numbers in their least to greatest value. Read more...iWorksheets :3Study Guides :1
Pattern BlocksA fraction is a part of a whole of something. Read more...iWorksheets :3Study Guides :1
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
FractionsA fraction is a part of a whole. Fractions for 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/10, and 1/12 Read more...iWorksheets :7Study Guides :1Vocabulary :2
Decimals/FractionsExpress decimals as an equivalent form of fractions to tenths and hundredths. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Add/Subtract FractionsWhat Is Addition and Subtraction of Fractions? Addition is combining two or more fractions. The term used for addition is plus. When two or more numbers, or addends, are combined they form a new number called a sum. Subtraction is “taking away” one fraction from another fraction. The term is minus. The number left after subtracting is called a difference. Read more...iWorksheets :4Study Guides :1
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1
FractionsThe top number of a fraction is called the numerator. It shows how many pieces of a whole we are talking about. The bottom number is called the denominator. It shows how many pieces an object was divided into, or how many total pieces we have. Read more...iWorksheets :4Study Guides :1
##### NC.3.NF.4. Compare two fractions with the same numerator or the same denominator by reasoning about their size, using area and length models, and using the >, <, and = symbols. Recognize that comparisons are valid only when the two fractions refer to the same whole with denominators: halves, fourths and eighths; thirds and sixths.
Fractions Greater Than or Less Than 1/2Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Comparing FractionsWhen comparing fractions, you are finding which fraction is greater and which fractions is less than the other. Similar to comparing numbers, there are symbols to use when comparing fractions. Read more...iWorksheets :5Study Guides :1Vocabulary :1
Equivalent Fractions to 1/2Fractions that are equivalent to ½ are fractions that have different denominators than ½, but still show half. Fractions that are equivalent to ½ can be simplified to ½. Fractions equivalent to ½ have an even number as their denominator. Read more...iWorksheets :3Study Guides :1
FractionsThe top number of a fraction is called the numerator. It shows how many pieces of a whole we are talking about. The bottom number is called the denominator. It shows how many pieces an object was divided into, or how many total pieces we have. Read more...iWorksheets :4Study Guides :1

### NC.3.MD. Measurement and Data

#### Solve problems involving measurement.

##### NC.3.MD.1. Tell and write time to the nearest minute. Solve word problems involving addition and subtraction of time intervals within the same hour.
TimeCalculate elapsed time in hours and half hours, not crossing AM/PM. Read more...iWorksheets :9Study Guides :1
TimeTell time to the nearest hour, half hour, and quarter hour. Read more...iWorksheets :8Study Guides :1Vocabulary :2
Story ProblemsA story problem is a word problem that contains a problem you need to solve by adding, subtracting, multiplying or dividing in order to figure out the answer. Read more...iWorksheets :4Study Guides :1Vocabulary :1
TimeFreeWhat Is Time? Time is a way to measure days, nights, and events. Time is made up of seconds, minutes, and hours. An analog clock is a clock with the numbers 1 through 12 around in a circle. Read more...iWorksheets :15Study Guides :1
CalendarWhat Is Elapsed Time? Elapsed time is the amount of time from the start of an activity to the end of the activity. It tells how long an activity lasted. Elapsed time can be measured in seconds, minutes, hours, days or weeks. Read more...iWorksheets :3Study Guides :1
##### NC.3.MD.2. Solve problems involving customary measurement.
###### NC.3.MD.2.a. Estimate and measure lengths in customary units to the quarter-inch and half-inch, and feet and yards to the whole unit.
MeasurementFreeThere are two system of measurement for length that can be used. U.S customary System and Metric System. U.S. Customary System & Metric system. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhen you need to measure an object, you must decide if you are: Measuring in length, weight, or capacity, choosing the unit that makes sense to measure the object, Measuring in the customary system or the metric system. Read more...iWorksheets :3Study Guides :1
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :10Study Guides :1Vocabulary :2
MeasurementMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :6Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1
###### NC.3.MD.2.b. Estimate and measure capacity and weight in customary units to a whole number: cups, pints, quarts, gallons, ounces, and pounds.
MeasurementFreeThere are two system of measurement for length that can be used. U.S customary System and Metric System. U.S. Customary System & Metric system. Read more...iWorksheets :10Study Guides :1Vocabulary :3
Units of MeasureWhen you need to measure an object, you must decide if you are: Measuring in length, weight, or capacity, choosing the unit that makes sense to measure the object, Measuring in the customary system or the metric system. Read more...iWorksheets :3Study Guides :1
MeasurementMeasurement is the use of units to show size, length, weight, or capacity.There are customary measurements and metric measurements. Read more...iWorksheets :10Study Guides :1Vocabulary :2
MeasurementMeasurement in inches, feet, centimeters, meters, cups, pints, quarts, gallons, liters, pounds, grams, and kilograms. Read more...iWorksheets :6Study Guides :1Vocabulary :3
Units of MeasureWhat are Units of Measurement? People measure mass, volume, and length. These measurements are labeled with appropriate unit of measurement. Read more...iWorksheets :4Study Guides :1
Comparing ObjectsWhen you compare two objects, you identify how the objects are ALIKE and how they are DIFFERENT. Read more...iWorksheets :3Study Guides :1Vocabulary :2
Determine Appropriate Standard of UnitsWhat are the Standard of Units? When measuring objects or distances, there are certain measurements of length, distance, weight, and capacity that should be used. There are customary standard of units and metric standard of units. Read more...iWorksheets :3Study Guides :1

#### Represent and interpret data.

##### NC.3.MD.3. Represent and interpret scaled picture and bar graphs:
###### NC.3.MD.3.b. Make a representation of data and interpret data in a frequency table, scaled picture graph, and/or scaled bar graph with axes provided.
Represent DataYou can represent data by bar graphs, pictographs and tables. Read more...iWorksheets :7Study Guides :1
Graphs and ChartsWhat Are Graphs? A way to show information in the form of shapes or pictures. Graphs show the relationship between two sets of information. There are many different types of graphs. A few of them include bar graphs, line graphs, pictographs, and circle graphs. Read more...iWorksheets :7Study Guides :1Vocabulary :1
Tables and GraphsWhat Are Bar, Circle, and Line Graphs? Bar Graphs are used to compare data. A bar graph is used to show relationships between groups. Circle Graphs are also known as Pie graphs or charts. They consist of a circle divided into parts. Line Graphs show gradual changes in data. Read more...iWorksheets :9Study Guides :1
GraphsGraphs are visual displays of data and information. A bar graph is a graph that uses BARS to show data. Bar graphs are used to compare two or more objects or people. Graphs and charts allow people to learn information quickly and easily. Read more...iWorksheets :9Study Guides :1
###### NC.3.MD.3.c. Solve one and two-step “how many more” and “how many less” problems using information from these graphs.
Represent DataYou can represent data by bar graphs, pictographs and tables. Read more...iWorksheets :7Study Guides :1
Graphs and ChartsWhat Are Graphs? A way to show information in the form of shapes or pictures. Graphs show the relationship between two sets of information. There are many different types of graphs. A few of them include bar graphs, line graphs, pictographs, and circle graphs. Read more...iWorksheets :7Study Guides :1Vocabulary :1
Tables and GraphsWhat Are Bar, Circle, and Line Graphs? Bar Graphs are used to compare data. A bar graph is used to show relationships between groups. Circle Graphs are also known as Pie graphs or charts. They consist of a circle divided into parts. Line Graphs show gradual changes in data. Read more...iWorksheets :9Study Guides :1
GraphsGraphs are visual displays of data and information. A bar graph is a graph that uses BARS to show data. Bar graphs are used to compare two or more objects or people. Graphs and charts allow people to learn information quickly and easily. Read more...iWorksheets :9Study Guides :1

#### Understand the concept of area.

##### NC.3.MD.5. Find the area of a rectangle with whole-number side lengths by tiling without gaps or overlaps and counting unit squares.
Area and PerimeterThe area of a figure is the space inside the figure. The perimeter of a polygon is the distance around it. The perimeter is the sum of the lengths of ALL the sides. Read more...iWorksheets :7Study Guides :1
##### NC.3.MD.7. Relate area to the operations of multiplication and addition.
###### NC.3.MD.7.a. Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.
Area and PerimeterThe area of a figure is the space inside the figure. The perimeter of a polygon is the distance around it. The perimeter is the sum of the lengths of ALL the sides. Read more...iWorksheets :7Study Guides :1
###### NC.3.MD.7.b. Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving problems, and represent whole-number products as rectangular areas in mathematical reasoning.
Area and PerimeterThe area of a figure is the space inside the figure. The perimeter of a polygon is the distance around it. The perimeter is the sum of the lengths of ALL the sides. Read more...iWorksheets :7Study Guides :1

#### Understand the concept of perimeter.

##### NC.3.MD.8. Solve problems involving perimeters of polygons, including finding the perimeter given the side lengths, and finding an unknown side length.
Area and PerimeterThe area of a figure is the space inside the figure. The perimeter of a polygon is the distance around it. The perimeter is the sum of the lengths of ALL the sides. Read more...iWorksheets :7Study Guides :1
PerimeterPerimeter is the distance around the outside of an object. Read more...iWorksheets :5Study Guides :1Vocabulary :1
PerimeterWhat Is Perimeter? The perimeter is the measurement of the distance around the outside of a shape or object. To find the perimeter of a shape or object, simply add the outside dimensions together. Read more...iWorksheets :4Study Guides :1

### NC.3.G. Geometry

#### Reason with shapes and their attributes.

##### NC.3.G.1. Reason with two-dimensional shapes and their attributes.
###### NC.3.G.1.b. Recognize and draw examples and non-examples of types of quadrilaterals including rhombuses, rectangles, squares, parallelograms, and trapezoids.
ShapesWe are surrounded by many different kinds of shapes every day. Many shapes are flat. These shapes are two-dimensional plane figures. Read more...iWorksheets :10Study Guides :1
ShapesFreeA shape is the external contour or outline of someone of something Read more...iWorksheets :11Study Guides :1Vocabulary :3