Maryland College and Career-Ready Standards Kindergarten Math Activities

MD.MA.K.CC. Counting and Cardinality (CC)

K.CC.A. Know number names and the count sequence.

K.CC.A.1. Major Standard: Count to 100 by ones and by tens.

K.CC.A.1.1. Ability to use rote counting (e.g., simply reciting numbers using the correct number order with no meaning attached) to one hundred (first to 20, then count by tens to 100, then 1-50, then 1-100).

K.CC.A.1.2. Ability to make transitions to the next ten.

K.CC.A.2. Major Standard: Count forward beginning from a given number within the known sequence (instead of having to begin at 1).

K.CC.A.2.1. Ability to initially use concrete materials, hundreds chart or number line to model counting from a given number other than 1.

K.CC.A.2.2. Knowledge that counting is the process of adding 1 to the previous number.

K.CC.B. Count to tell the number of objects.

K.CC.B.4a. Major Standard: Understand the relationship between numbers and quantities; connect counting to cardinality – When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object (one to one correspondence).

K.CC.B.4a.2. Ability to keep track of which objects have been counted from those that have not been counted.

K.CC.B.4a.3. Recounts the objects just counted to see if the count is the same without prompting.

K.CC.B.4a.4. Notices if a recount of objects are different and self corrects by recounting.

MD.MA.K.OA. Operations and Algebraic Thinking (OA)

K.OA.A. Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.

K.OA.A.1. Major Standard: Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, or verbal explanations, expressions, or equations.

K.OA.A.1.1. Ability to represent addition and subtraction processes in a variety of ways, using concrete materials, pictures, numbers, words, or acting it out.

K.OA.A.1.2. Knowledge that “putting together” and “adding to” are two different processes of addition.

K.OA.A.1.3. Knowledge that “taking apart” and “taking from” are two different processes of subtraction.

K.OA.A.2. Major Standard: Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.

K.OA.A.2.1. Ability to represent the process of solving various types of addition and subtraction word problems (CCSS, Page 88, Tale 1) within 10 using objects and drawings to develop number sentences.

K.OA.A.2.2. Knowledge of the different types of word problems (e.g., add to, result unknown; take from, result unknown; put together/take apart, total unknown) which lays the foundation for more difficult word problems.

K.OA.A.2.3. Ability to use concrete materials or pictures and a Part-Part-Whole Mat to organize the manipulatives and make sense of the problem.

K.OA.A.2.4. Solves problems using a variety of counting strategies (counting all, counting on, skip counting) progressing to more sophisticated mental math strategies and using known addend combinations.

K.OA.A.3. Major Standard: Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawing, and record each decomposition by a drawing or equation (e.g., 5 = 2+3 and 5 = 4+1).

K.OA.A.3.1. Knowledge that decomposition involves separating a number into two parts and understanding that there is a relationship between the sum of the parts and the whole.

K.OA.A.3.2. Knowledge that there are a variety of combinations that represent a given number.

K.OA.A.3.3. Ability to begin with the whole when decomposing numbers into pairs.

K.OA.A.3.4. Knowledge that when writing an equation to represent the decomposition of a number, the values on each side of the equal sign are the same (e.g., 7 = 2+5).

K.OA.A.4. Major Standard: For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings and record the answer with a drawing or equation.

K.OA.A.4.1. Ability to use experience with K.OA.A.3 to make sense of this Standard.

K.OA.A.4.2. Use ten frames to find how many more is needed to make 10.

K.OA.A.4.3. Knows the combinations to make 10.

K.OA.A.5. Major Standard: Fluently add and subtract within 5.

K.OA.A.5.1. Ability to apply decomposition knowledge and relationship between addition and subtraction to determine the sum or differences of various problems.

K.OA.A.5.2. Knows the composition and decomposition to make 5 fluently.

MD.MA.K.NBT. Number and Operations in Base Ten (NBT)

K.NBT.A. Work with numbers 11-19 to gain foundations for place value.

K.NBT.A.1. Major Standard: Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (such as 18 = 10+8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.

K.NBT.A.1.1. Ability to rote count by 10s.

K.NBT.A.1.2. Use multiple concrete materials to make groups of 10 and count the groups.

K.NBT.A.1.3. Ability to use concrete materials (e.g., Unifix cubes, snap cubes, Digi-blocks, base ten blocks, etc.) to represent the combination of one ten and ones for each number.

K.NBT.A.1.4. Ability to record the representations of 11 through 19 in pictures, numbers, and/or equations to show 1 ten and x ones.

K.NBT.A.1.5. Understand 11-19 represents one group of ten and x ones.

MD.MA.K.MD. Measurement and Data (MD)

K.MD.A. Describe and compare measurable attributes.

K.MD.B. Classify objects and count the number of objects in each category.

K.MD.B.3. Supporting Standard: Classify objects into given categories; count the number of objects in each category and sort the categories by count (Limit category counts to be less than or equal to 10).

K.MD.B.3.1. Ability to sort objects by a given attribute.

K.MD.B.3.2. Ability to classify objects by predetermined categories related to attributes (e.g., number of sides, number of corners).

MD.MA.K.G. Geometry (G)

K.G.A. Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).

K.G.A.1. Additional Standard: Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to.

K.G.A.1.1. Ability to use geometric vocabulary when describing objects.

K.G.A.1.2. Ability to use terms of relative positions when describing objects in the environment.

K.G.A.2. Additional Standard: Correctly name shapes regardless of their orientations or overall size.

K.G.A.2.1. Ability to name the various shapes regardless of their orientation or overall size (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).

K.G.B. Analyze, compare, create, and compose shape.

K.G.B.4. Additional Standard: Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/“corners”) and other attributes (e.g., having sides of equal length).

K.G.B.4.1. Identify and compare like and unlike shapes.

K.G.B.4.2. Identify, analyze and compare shapes of different sizes and orientations.

K.G.B.4.3. Describe similarities and differences, of the parts of the shapes.

K.G.B.4.4. Name the shapes.