Make sense of quantities and their relationships in problem situations.
Algebra and Functions
Operations & Algebraic Thinking: Work with addition and subtraction equations.
Reason abstractly and quantitatively.
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Consider the correctness of another students’ measurement in which they lined up three large and four small blocks and claimed a path was “seven blocks long.”
Reason quantitatively to recognize that a number is a multiple of each of its factors.
Progress from thinking about numbers as the result of the process of counting to abstractly thinking about numbers as mental objects of their own-especially the quantity 10.
Decontextualize word problems, use mathematics to solve, and then recontextualize to provide the answer in context.
Make reasoned arguments about the relative sizes of groups, such as by matching objects of two groups and seeing which has extra objects, or by counting the objects in each group and seeing which has the number further in the counting sequence.