Students can use this tool to see how the length of the base and the height of a figure can be used to determine its area. What are the similarities and differences between the area formulas for trapezoids, parallelograms, and triangles?
In this interactive game, learn how to calculate diameter, radius and circumference, plus pi and its relationship to circle area and circumference. There are quiz-show questions to collect targets, a mini-game and a comic video about "pi" and "pie".
Use this learning object to select a geometric solid and adjust its dimensions to see how the changes affect surface area and volume. Compare different solids and see how each can be described in two dimensions (nets).
What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry.