Algebra tiles
This are the links to the "Comparison mat" and the "Equation mat" that are used compare expressions and solve equations with the use of tiles.
Each tile is named according to its area. Negative tiles are always red, meanwhile positive tiles have different colours.
I hope this is gonna help if you work with tiles!!!
Algebra Tiles Interactive page from All Math Words Encyclopedia demonstrating the use of algebra tiles to represent a quadratic equation. By David McAdams
