Quick Math Homework Help
Master the 7 pillars of school success that I have learned from 25 years of teaching.
Improve your grades and lower your stress
Geometry Demonstrations
These Geometry Demonstrations show you visually several Geometry concepts like volume, surface area, and the Pythagorean Theorem. I find it helpful to visually see geometry formulas.
Volume of a Cone
In this video you will see how the volume of a cone is equal to 1/3 the volume of a cylinder of equal radius and height.
The ratio of the volume of a cone is 1 to 3 of the equal sized cylinder. You will see that I was able to pour three cones filled with water into one cylinder.
Volume of a Pyramid Demonstration
In this video you will see how the the volume of a pyramid is 1/3 the volume of a prism that has the same shaped base. If you fill up a pyramid with water it will take three pyramids to fill up one prism.
Surface Area of a Sphere and a Hemisphere
In this video you will see how the surface area of a sphere equals the area of the great circle of the sphere. I covered a sphere with foil, and then drew four circles with the same radius as the great circle of the sphere. I next unwrapped the sphere and placed the foil in the four circles. You will see the foils fits in four circles.
You may also enjoy a demo of the Pythagorean Theorem