In this activity, students can practice two very specific skills dealing with trigonometry. The first is simply being able to correctly place the names of the sides of a right triangle (opposite, adjacent and hypotenuse). Students drag the side names and then can check their answers and then randomly generate another triangle to try again. The second is one where a random triangle is generated that shows information about two sides and one angle. Students then drag parts of an equation to create a trig ratio equation. They can check their answer and then randomly generate other right angled triangle to try again.

This is not meant to be something that a student uses for a long length of time but instead just some quick practice to re enforce the basic ideas from trig ratios.

Did you use this activity? Do you have a way to make it better? If so tell us in the comment section. Thanks

- MFM2P, MPM2D - determine, through investigation (e.g., using dynamic geometry software, concrete materials), the relationship between the ratio of two sides in a right triangle and the ratio of the two corresponding sides in a similar right triangle, and define the sine, cosine, and tangent ratios.
- MCR3U, MCF3M, MBF3C - As review

- All that is needed is the electronic download (below)
- Note that this really works well on an iPad using the Sketchpad Explorer App (which is free)
- You can also use this on any web based computer (or Chromebook) with this Web sketch

Did you use this activity? Do you have a way to make it better? If so tell us in the comment section. Thanks

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