1. Base Ten Blocks
Grade 6 NSN Unit

2. Re-cap… What is a place value chart?
What are the groups in a place value chart?

3. What is a base ten block?

4. Why do you think base ten blocks could be used for?

5. Modeling Numbers with Base Ten Blocks is Important…
to represent a number in different ways so that flexible thinking about the quantity of a number can be developed; and
to provide visuals that show how numbers are com- posed of other numbers; that is, to show part- whole relationships of numbers.

7. Addition with Base Ten Blocks
addition is the joining or composing of parts to make a whole;
So, you are putting the blocks together to make a new number

8. Subtraction with Base Ten Blocks
subtraction is separating or decomposing of the parts of a whole; and
subtraction is comparing two wholes to determine the difference between them.