Grade 6 · 6.EE.3 · 6.EE.4
Using Algebra Tiles to Combine Like Terms
See it, build it, then write it. Same tiles go together — that's the whole idea.
3x + 2 + 4x + 5
x
x
x
1
1
x
x
x
x
1
1
1
1
1
↓ group like tiles ↓
x
x
x
x
x
x
x
1
1
1
1
1
1
1
7x + 7
Define It
Learn the words: variable, coefficient, constant, term, like terms.
2Build It
Model expressions with x-tiles and unit tiles.
3Combine It
Group matching tiles and write the simplified expression.
4Prove It
Use tiles to decide if two expressions are equivalent.
Concrete (tiles) → Representational (pictures) → Abstract (symbols)