Trigonometric Identities Speed Dating


Kate Nowak explains Speed Dating in math class.

The Word document you’ll need to run this one in your class: Trigonometric Identities Speed Dating

Instructions for this one

  • There are 12 identities to prove provided here.
  • Make 3 copies of each page (assuming a class of 36) on 3 different coloured card stock. Add or remove identities as needed for your class size.
  • Cut them out.
  • Start this activity by having the 3 students with the same identities work together to complete their proof correctly.
  • The proofs get progressively more difficult, so you can differentiate by having your struggling students work on one of the earlier ones, and your stronger students work on one of the later ones.
  • Split the class into 3 long rows of desks facing each other. Have all the students with the same coloured identities fill a row.
  • Students facing each other exchange their identity cards and attempt the proof given to them by the other person. If they get stuck, they ask the expert across from them.
  • After 5 minutes or so, signal the time to change, and have students on one side of the row get up and move one spot to the right or left.
  • Repeat as often as you have time for.

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