Colouring by Trigonometry - The Grinch, Sine & Cosine Laws (15 and 30 versions)
A highly engaging task combining individual accountability with collaborative motivation! Colouring meets Trigonometry in this Holiday class-wide math mosaic that will look spectacular hanging up in your classroom :) Each worksheet represents a small section of the big picture!

The Grinch mosaic is also available in a Linear Equations version, and a Linear Systems Word Problems version. You can find Cindy Lou Who too! (6 version bundle of linear equations)

◾3 Sine Law solving for side
◾3 Cosine Law solving for side
◾3 Sine Law solving for angle
◾3 Cosine Law solving for angle

It's simple!
1. Calculate the answers.
2. Colour the squares.
3. Cut out your section.
4. Combine with the class!

INCLUDED (.pdf and .docx files in zip folder):
--> Two class size versions of 15 or 30 worksheets (all different!)that combine to create the Grinch mosaic!
--> Master Answer Keys showing the colour solutions and numeric range answer key for assessment at a glance.

The student buy-in factor is HUGE with these worksheets; they all want to see the finished picture come together! High school students love colouring too! This sure beats textbook homework!

Imagine if your students were the ones policing homework completion? "Common Jenny! Do your work or we'll have a hole in our picture!"

Leave the picture a secret or show it for motivation… it’s your call.

Encourage students to check their answers by finding them in the randomized list on their worksheet before they colour each square. This will increase the accuracy of the final picture!

All my “Colouring by…” worksheets use standard pencil-crayon colours found in the Crayola 24 pack. For best results, use the exact colour name match (and encourage quality colouring!). Perhaps a class set of pencil crayons would be a fun math department investment!

If your class size doesn’t line up with 15 or 30, no worries! You could hand out some duplicate worksheets (if you have more) and decide which to display in the big picture once they're coloured. Or, you could have some students work pairs (differentiated learning!). If you have a small class, you could use the answer key to fill in the missing pieces quickly.

Feedback, suggestions, and frontline stories are always welcomed!

Thanks for checking this out! Merry Christmas.
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  • grinch_picture.png
  • grinch_trig_worksheet1.png
  • grinch_trig_worksheet2.png

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Created: Nov 9, 2016

Updated: Feb 22, 2018

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