Additional Activities
1) Imagine you have some blue and yellow buttons.
A. Form 5 different groups of buttons. Make sure that the ratio of the number of blue buttons to the number of yellow buttons in each group is 4: 3.

B. Construct a table to record your results in (a).

C. Use the information in the table to write five (5) proportions.

D. If there are 72 yellow buttons in a group, how many blue buttons are there?

2) On a bulletin board, a teacher posted the following triangles.

A pupil said that the sides of the triangles are not in proportion. Do you agree? Why or why not?

3) Ratio A is equivalent to Ratio B. Ratio B is equivalent to Ratio C. Do Ratios A and C form a proportion? Explain your thinking,​