1. Using Algebra Tiles

2. Zero Pairs
White tiles are POSITIVE Blue tiles are NEGATIVE What is (+1) + (-1)? What is (+5) + (-5)? What is (+x) + (-x)?

3. Factors How can we use the tiles to model the number 6?
Using algebra tiles, model the number 9.
Using algebra tiles, model the number 11.
Using algebra tiles, model the number 16.

4. Integer Addition How can we use algebra tiles to model (+2) + (+3)?

5. Integer Subtraction How can we use algebra tiles to model (+4) - (+1)?

6. Integer Multiplication
How can we use algebra tiles to model (+3) * (+4)?
3 rows of +4’s
How can we use algebra tiles to model (+2) * (-3)?
2 rows of -3’s
How can we use algebra tiles to model (-3) * (+4)?
3 rows of +4’s, flipped
Using algebra tiles, model (+3) * (-5).
Using algebra tiles, model (-2) * (-3).

7. Substitution How can we use algebra tiles to model 2x + 3, if x=2?

8. Independent Practice 4x + 2, if x=2 2x + 7, if x=5 -3x – 2, if x=3
Use algebra tiles to answer each of the following. Take a picture of each representation and to Ms. Smith at
4x + 2, if x=2
2x + 7, if x=5
-3x – 2, if x=3
2x – 3, if x=-2