Math Water Table (former obbliq)
Math Water Table is an online liquid simulator. (Former obbliq)
To get the area of a limited number of shapes (rectangles and triangles)
To verify the area formulas of some limited geometrical shapes.
Video help at: http://www.youtube.com/watch?v=ngqFCrkoCAU
Is useful to explain multiplication and division. The old program is in the mirror link.