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Mathematics – Primary (grades 1-4)

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Building on the foundation begun in the Preprimary, 1st and 2nd grade students extend their number sense and computational facility through both individual and shared math investigations. We focus on strengthening students’ ability to mathematize—to make math make sense—with an emphasis on estimation and the development of mental math strategies. Using authentic problems, students develop an understanding of addition and subtraction, place value, equivalence and the use of five and ten structures to build efficiency with calculation. Students develop automaticity with basic addition and subtraction facts.

3rd and 4th grade students expand their growing mathematical understanding to the concepts of multiplication and division. In shared problem solving experiences and classroom discussions, students first construct their approaches to multiplication and division and then begin to formalize those understandings into more systematic and fluent calculation. Algebraic thinking is introduced along with data collection and measurement (length, area, volume, and mass) in problem solving contexts. Students use rectangular arrays to deepen their understanding of multiplication and to explore dimensions of number theory such as square and prime numbers. Using problem-solving strategies, they explore the concept of division.

Using authentic problems, students, develop an understanding of

  • addition and subtraction

  • place value

  • equivalence

  • the use of five and ten structures

  • multiplication and division

are introduced to

  • algebraic thinking

  • data collection and measurement

and build efficiency with calculation.

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