base 10
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Base 10 Blocks on Jamboard for Subtraction
This post provides access to and details about a Google Jamboard with scaffolded background to support multi-digit subtraction with regrouping. The Jamboard The Jamboard has images of basic base 10 blocks. The background provides side by side tables for numbers and for blocks. Additional blocks are set aside for regrouping. Here is a FB Reel…
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Using $10 and $1 Bills to Represent Regrouping in Addition or Subtraction
Money is intuitive for many students, even when the underlying math is not. For example, I often find that students who do not understand well the concept of Base 10 place value do understand $10 and $1 bills. With this in mind, I created a virtual scaffolded handout that builds on student intuitive understanding of…
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Base Ten Using Popsicle Sticks
I use the following method as a entry point for double digit numbers. The photo below shows 2 packs of Popsicle sticks counted as 10 each, followed by single sticks counted as 1 each. The student counts on from 20, with the use of the scaffolded handout (photo at bottom). The handout focuses only on…