I used this One Big Square Task with my trigonometry students to review 45-45-90 special right triangles.
I found this task in the Open Curriculum Task Database. I loved listening to the conversations my students had as they struggled through this problem. And, I mean “struggle” in the best possible way!
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One Big Square Task (PDF) (1044 downloads)
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More Geometry Teaching Resources
- Right Triangle Trig Formula Sheet
- Pythagorean Theorem and Distance Formula Notes
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- Missing Angles Notes
- Classifying Triangles by Angles and Sides Notes
- Sankaku Puzzles
- Tricky Triangles Puzzle
- Triangular Turkey Puzzle
- Three of Five Puzzle
- SOH CAH TOA Notes
- Let’s Make Squares Activity
