DiscoverMath is Figure-Out-Able!Ep 251: Foundations for Multi-Digit Addition & Subtraction Strategies
Ep 251: Foundations for Multi-Digit Addition & Subtraction Strategies

Ep 251: Foundations for Multi-Digit Addition & Subtraction Strategies

Update: 2025-04-08
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Description

What kinds of tasks help students build multi-digit addition and subtraction strategies? In this episode Pam and Kim discuss how to sequence tasks to develop the foundational strategies and relationships for multi-digit addition and subtraction: Friendly numbers, place value, adjusting, the commutative property, decomposing

Talking Points:

  • Sequencing tasks is more than just moving from one page to the next in the teacher guide
  • Sample of three "messy" tasks to:
    • develop number lines
    • make connections between addition and subtraction
    • analyze strategies
    • solidify a strategy

For more sequences, check out the Foundations for Strategies from Hand2mind!: https://www.hand2mind.com/item/foundations-for-strategies-multi-digit-addition-subtraction-small-group-kit

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Ep 251: Foundations for Multi-Digit Addition & Subtraction Strategies

Ep 251: Foundations for Multi-Digit Addition & Subtraction Strategies

Pam Harris, Kim Montague