I created this practice book to give my trigonometry students practice finding trig ratios of ordered pairs.

I think I could have done a better job of writing out these steps. Maybe next time I teach trig I will make these steps clearer…

We took a piece of graph paper and folded it into a poof book. This let us fit three practice problems onto our page. I let students pick ordered pairs for the class to work with. I would choose the quadrant, and students could pick any ordered pair in that quadrant. This prevented all of our examples from being in the first quadrant.

First Quadrant Example:

Second Quadrant Example:

Third Quadrant Example:

## More Activities for Teaching Trigonometry

- Paper Plate Angle Spinners for Trigonometry
- Trig Reference Angles Activity: Odd One Out
- Evaluating Trig Functions Tarsia Puzzle
- 27 Hands-On Trigonometry Activities
- 5 Free Printable Trigonometry Posters
- Unit Circle Bingo Game
- Quadrants Unlocked Activity
- Printable Radian Sectors
- Trigonometry Calculator Skills Pop Quiz
- Odd One Out Coterminal Angles Activity
- Deriving the Unit Circle Foldable
- Trigonometry Puzzle

Amy

Tuesday 13th of December 2016

Here'e the song I use with my students:

"Trace your finger 'round a jar Circumference equals 2 pi r. For area, we multiply r squared times that number pi. Twinkle, twinkle, you're a star, learning math will take you far!"

Unknown

Tuesday 21st of June 2016

Sarah, I must tell you how much you've helped me get back into teaching. I've enjoyed reading your blog posts and seeing the evolution of your teaching methods. Thank you so much!

Sarah Carter (@mathequalslove)

Thursday 30th of June 2016

You're very welcome!

cathy olshefski

Tuesday 16th of February 2016

thank you for posting--might use some of these

Sarah Carter (@mathequalslove)

Friday 19th of February 2016

Hope you can find something useful!

Unknown

Saturday 16th of January 2016

do you teach a trig unit in algebra 2? wondering how to order my topics to have better success then last year :$

Sarah Carter (@mathequalslove)

Tuesday 19th of January 2016

Algebra 2 in OK currently contains zero trig content.

V. Krishnan

Thursday 17th of December 2015

Thank you very much for all the wonderful ideas. I can't wait to use them in my trigonometry class. I especially love the bowtie idea for reference angles and the pipecleaner example to teach radian measure. What a fun way to show that you have same number of radians in a circle irrespective of how big the circle is!

Sarah Carter (@mathequalslove)

Friday 18th of December 2015

Have fun! I miss teaching trig.