Purple Paint

One batch of a certain shade of purple paint is made by mixing 3 pails of blue paint with 2 pails of red paint. A. Complete the following ratio table: B. What patterns do you notice in the rows and columns? How would the entries in the nth column of the table be related to […]

Jumping Monkeys

Do ratios always make sense?

Modeling Proportions

Use different models to explore proportional relationships.


What is the relationship in each pair of problems?

Inverse Changes

How do percentages affect inverse proportions?

Ratio of a+b to b+c

Determine the relationship between ratios.

Exploring Rectangle Properties

Explore the relationship between increases in area and perimeter.

Maximum Capacity

Determine how many adults and children can get on a ferry boat.

Going to the Movies

Predict the cost of the movie tickets.

Double Dollars

What is the fewest number of years until an investment doubles in value?