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**Objective:**

Child will understand the commutative property of multiplication.

**Essential Question(s):**

How does multiplication work? Is there a direction, or can it be flipped around?

**Special Materials:**

Paper and pencil for recording data

**Bricks Required:**

16×16 plates, 2×2 or 1×1 bricks

**Project Structure**

**Engage/Explore:**

- Distribute one 16×16 plate and 24 2×2 or 1×1 bricks.
- Ask child to lay out a row of 4 bricks on the plate, then add 2 more equal rows.
- Have child create a multiplication sentence based on their brick outlay.
- Child then rotates their plates 90 degrees. Ask them to create a new multiplication sentence based on the new orientation.
- Ask child to solve both multiplication sentences on a sheet of paper.

**Explain:**

- Ask child: if they were to do the problems backwards, would they get the same answers?
- Why or why not?
- Child should test their reasoning on a few problems and explain (commutative property).
- Ask the child to lay out 1 more row of bricks (at this point it should be