This app was created to solve the pencil breaking and pillow punching that comes with a tough Pythagorean Theorem Problem. No more do you have to figure out the square root of some non-perfect square! If you need a visualization of the triangle, no problem! A drawing is there at all times to assist you.
Oh Christmas Tree: Slope Edition. This is a good tool to remember the different types of slope. I would have my students make these after we learned it in class as an activity to keep in their notebook.