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GR 2 Unit 3a: Stickers, Number Strings and Story Problems A (November 23 - December 18)

After their work with doubling numbers in the previous unit, students relate doubles to other number combinations as a strategy for adding. Additionally, work with story problems continues as students find ways to represent numbers that seem to be missing from the story.

Essential Questions

  • How can doubles help me with addition?
  • How can I show an unknown number in a story problem?


New Vocabulary
: adding tens and ones, calculator, count all, count back, count on, near doubles, number string, total, unknown addend

Continuing Vocabulary: addend, addition, doubles, equation, subtraction

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