Variables and Equations

Refresher pp 32-33

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Prerequisite Skills:

• Illustrate the solution process of a two-step, single variable, first-degree equation.

• Recognize and write equivalent expressions.

• Translate phrases into mathematical expressions.

• Evaluate expressions by substitution.

Algebra Tile Review

Algebra tiles have a variety of other names: algetiles, math tiles, and virtual tiles.  Algebra tiles can help you visualize equivalent algebraic expressions and/or equations.  Many of the real tiles have a positive and a negative side. The virtual algebra tiles activities will use multi-coloured positive tiles. The reverse (negative) side of each of these tiles is red. It helps to understand that negative tiles have one positive and one negative dimension.