Shop fun, minimal-prep Valentine's Day triangles and the Pythagorean theorem math lessons, activities, and worksheets. Practice the Pythagorean theorem and use it to find the length of sides in triangles. Celebrate Valentine's Day in math class with these heart themed, pink-and-red activities. You can reuse them any time of year, too!
We'll send you 6 activities (66 pages!) — for free.