Let's recall how tape diagrams and equations can show relationships between amounts.

Let's see what it means to find a solution for an equation with a variable.

Let's use balanced hangers to help us solve equations. 

Let's solve equations by doing the same to each side.

Let's use equations to represent and solve real-world problems.

Let's use equations to find percentages.

Let's use expressions with variables to describe situations.

Let's use diagrams to figure out which expressions are equivalent and which are just sometimes equal.

Let's use the distributive property to describe expressions.

Let's use rectangles to understand the distributive property with variables.

Let's practice writing equivalent expressions by using the distributive property.

Let’s see how exponents show repeated multiplication.

Let's use the meaning of exponents to decide if equations are true.

Let’s find the values of expressions with exponents.

Let's investigate expressions with variables and exponents.

Let’s use tables, equations, and graphs to describe relationships.

Let’s use equations and graphs to describe stories with constant speed.

Let’s use graphs and equations to show relationships involving area, volume, and exponents.

• Let’s explore some equations from real-world situations.