E is for Explore!: area / perimeter; have students measure and cut out rectangles of various sizes and glue to white construction paper, leaving rectangles from white background. Find area of each rectangle and then compare to area of original white construction paper.
Forget algebra and geometry. For teenagers with dyscalculia, even basic arithmetic can be a struggle. Use this visual guide to see how trouble with number concepts and quantities can affect a high-schooler's daily life.