This is a whiteboard sheet that we go through daily.

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A more recent resource that I developed to help students develop number fluency is the Make 100 and Make 1000 resource.

This resource has MANY activities where students practice making 100 and making 1000. Base-10 blocks are another model I teach students to use; however, I generally teach students to draw the base-10 blocks.

This is also a great example of compensation (see below) because the student added one to the 34 to make easier jumps and then took it away at the end.

This is from my Second Grade Cut & Paste Math Activities.

We spend a lot of time discussing a variety of strategies, using many different models, and doing mental math. based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method.

Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

My students needed more direct practice with number lines and making jumps, despite all of our whole group practice.

So, I gave them the directions and students followed them on the number lines.

It’s a learning process and something I’m continually reflecting on throughout the years.

All that to say, you may see a few things labeled one way and question its label.

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