What’s Your Sine?

Directions: Use the digits 1 through 9, at most one time each, to fill in the boxes and make THREE true number sentences:

Hint

How many different angles can be plugged into the sine function to produce 0, 1/2, and 1?

Answer

Many potential solutions, such as:
sin (9pi / 3) = 0
sin (5pi / 6) = 1/2
sin (1pi / 2) = 1

Source: Zack Miller

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One comment

  1. I think there are many good reasons to teach radians besides preparing kids for Calculus… but even if there weren’t, I might teach kids radians just to do this activity with them. What a perfect blend of simplicity and challenge.

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