1.  Three classes have the same ratio of girls to boys. 
  In Elisa's class there are 6 girls and 5 boys. 
  Bert's class has 15 boys. 
  Karen's class has 12 girls. 
 a)  Use colored blocks to show the ratio of girls to boys in Elaine's class. 
 b)  Using the same color of blocks for boys and girls as above set up an equivalent ratio to help you determine the number of boys and girls in Bert's class. 
 c)  Determine how many boys and girls in Karen's class. 
 d)  Use a drawing to record each solution. 
 e)  Write the ratio using a colon beside each drawing. 
 f)  What is the ratio in lowest terms? 

2.  A recipe calls for 250 mL of sugar, 500mL of oatmeal and 750 mL of flour. 
 a)  Write the amounts as a ratio. 
 b)  Rename the ratio in lowest terms using blocks and draw to record your answer. 
3.  Use the colored cubes to show a ratio of 4:8:6 three different ways. Draw to record and write each as a ratio. 
4.  Choose a ratio. Show the ratio three different ways using the blocks. Draw to record and write each as a ratio. 
5.  In your own words define the term equivalent ratio. 