Teaching Algebra with Manipulatives

Equation Models Summary
A zero pair is formed by pairing one positive tile and one negative tile of
the same type.
x 2 x 2
0
0
x
x
1
0
1
You can remove or add the same number of like tiles to each side of the
equation mat without changing its value.
Add 2 negative ones to each side.
x 1 1
1
1
1
x
1 1
1 1
1 1 1
1 1
x 2
3
x 2 ( 2) 3 ( 2)
You can remove or add zero pairs to either side of the equation mat
without changing the equation.
Remove 2 zero pairs.
x
1 1
1 1
1 1 1
1 1
x
1 1
1
1
1 1
1
1
1
x 2 (2) 3 (2) x 1
© Glencoe/McGraw-Hill 14 Teaching Algebra with Manipulatives