Introducing Proportional Relationships with Tables


Activity #1

Introducing Proportions.

A bakery uses 8 tablespoons of honey for every 10 cups of flour to make bread dough. Some days they bake bigger or smaller batches, but they always use the same ratio of honey to flour.

  • Complete the table and answer the questions.

(1.) How many cups of flour do they use with 20 tablespoons of honey?

(2.) How many cups of flour do they use with 13 tablespoons of honey?

(3.) How many tablespoons of honey do they use with 20 cups of flour?

(4.) What is the proportional relationship represented by this table?

Activity #2

More Proportions.

4 quarters are equal in value to 10 dimes.

  • Complete the table and answer the questions below.

(1.) How many dimes equal the value of 6 quarters?

(2.) How many dimes equal the value of 14 quarters?

(3.) What value belongs next to the 1 in the table? What does it mean in this context?

Activity #3

Compare Shapes.

Here are four different crescent moon shapes.

  • Look at the applet to answer the questions below.

(1.) What do Moons A, B, and C all have in common that Moon D doesn’t?

(2.) Use numbers to describe how Moons A, B, and C are different from Moon D.

(3.) Can you make one moon cover another by changing its size?

(4.) What does that tell you about its dimensions?

Challenge #1

When Han makes chocolate milk, he mixes 2 cups of milk with 3 tablespoons of chocolate syrup. Here is a table that shows how to make batches of different sizes. Use the information in the table to complete the four statements below. Some terms are used more than once.

Challenge #2

A recipe says that 6 spring rolls will serve 3 people. Complete the table.

Challenge #3

Quiz Time