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PA.2.1. Numbers, Number Systems and Number Relationships
2.1.4.A. Apply number patterns and relationships to count and compare values of whole numbers and simple fractions, and decimals.
2.1.4.C. Use drawings, diagrams, or models to show the concept of a fraction as a part of a set and as division of a whole number by a whole number.
2.1.4.D. Apply place value concepts and base-ten numeration to order and compare larger whole numbers.
2.1.4.E. Apply factors and multiples to represent larger numbers in various ways.
2.1.4.F. Understand the concepts of addition and subtraction and their inverse relationships; understand the concepts of multiplication and division; use the four basic operations to solve problems, including word problems and equations.
2.10.4.A. Identify right angles in geometric figures.
PA.2.11. Concepts of Calculus
2.11.4.A. Make comparisons of whole numbers and of unit fractions (e.g., more, less, same, least, most, greater than, less than).
PA.2.2. Computation and Estimation
2.2.4.A. Develop fluency in the use of basic facts for the four operations.
2.2.4.B. Multiply single- and double-digit numbers and divide by single digit numbers, add and subtract fractions with like denominators, and add and subtract decimals.
2.2.4.D. Estimate sums and differences, products, and quotients, and conclude the reasonableness of those estimates.
PA.2.3. Measurement and Estimation
2.3.4.B. Select and use appropriate tools and units for measuring quantities (e.g., length, time, weight, temperature).
2.3.4.C. Calculate elapsed time; use concept of elapsed time to determine start time/end time.
PA.2.6. Statistics and Data Analysis
2.6.4.C. Describe and calculate the mean and use this quantity to describe the data.
2.6.4.D. Analyze data shown in tables, charts, diagrams, and graphs; compare the data from two categories displayed in a graph and compare representations of a set of data in different graphs.
PA.2.7. Probability and Predictions
2.7.4.B. Determine whether different outcomes of the same event are equally likely or not equally likely.
2.7.4.C. Express probabilities as fractions.
PA.2.8. Algebra and Functions
2.8.4.A. Use the concept of equality and concrete objects to demonstrate understanding of commutative, associative, and identity properties.
2.8.4.B. Select and use strategies, including concrete objects, to solve number sentences (equations and inequalities) involving whole numbers or unit fractions and explain the method of solution.
2.8.4.C. Recognize, describe, extend, create, replicate, and make generalizations for a variety of patterns, sequences, and relationships verbally and numerically.
2.9.4.A. Identify, describe, and define 1-, 2-, and 3- dimensional shapes and their related parts; compare 2-dimensional shapes; compare 3- dimensional shapes.
2.9.4.B. Identify and draw figures with one or more lines of symmetry.
2.9.4.C. Identify on a 2- dimensional coordinate system the location of points with whole number coordinates; plot in a two-dimensional coordinate system a point represented by an ordered pair of whole numbers.
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