Students will learn how to convert word problems to linear expressions. These word problems may involve percents, which students will convert to decimals when writing the linear equation.

Watch these Khan Academy videos:

Interpreting linear expressions by Khan Academy

Next, give your students these challenges:

- The Domesday Project by NRICH
- Throw a 100 by NRICH

Conclude by leading this investigation:

Twisted Homes (rotational symmetry, patterns)

by MathPickle

7.EE.A.2: Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related. *For example, a + 0.05a = 1.05a means that "increase by 5%" is the same as "multiply by 1.05."*