Let’s use constants of proportionality to solve more problems.

Let’s use fractions to describe increases and decreases.

Let’s use decimals to describe increases and decreases.

Let’s use percentages to describe increases and decreases.

Let’s solve more problems about percent increase and percent decrease.  

Let’s use equations to represent increases and decreases.

Let’s explore percentages smaller than 1%.

Let’s learn about sales tax and tips.

Let’s learn about more situations that involve percentages.

Let’s solve more problems about sales tax and discounts.

Let’s use percentages to describe situations that involve error.

Let’s use percentages to make sense of changes on Earth.

Let's explore how percentages are used in the news.