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!

## Free Download of One Big Square Task

One Big Square Task (PDF) (1044 downloads)

One Big Square Task (Editable Publisher File ZIP) (420 downloads)

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