Shop fun, minimal-prep triangles and the Pythagorean theorem Google Sheets fall, Halloween, and Thanksgiving 8th grade math lessons, activities, and worksheets. Aligned to Common Core State Standards. Celebrate back-to-school with themes of fall, autumn, Halloween, and Thanksgiving. You can use them other times of year, too. Auto-grading Google Sheets save you time and give students immediate feedback. Practice the Pythagorean theorem and use it to find the length of sides in triangles.
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