Tape Diagrams

Emma’s DVD Collection

Work Time

Emma's DVD Collection

Emma has a DVD collection. The ratio of drama DVDs to mystery DVDs in her collection is 7:3.

  • Make a tape diagram that represents the situation above.
  • If Emma has 28 drama DVDs, how many mystery DVDs does she have? Use your tape diagram to find the solution.

Ask yourself:
 

  • Create a tape diagram with two strips of tape.
  • Create one strip of tape to represent the drama DVDs. How many units should you divide the strip into?
  • How would you create a second strip of tape to represent the mystery DVDs?
  • How many DVDs does each unit in your tape diagram represent?