

What solid object has circles as its front and side views, as shown below, but its top view is not a circle?
This demonstration helps students to learn about a common pitfall in translating between two-dimensional cross-sections and projections in mechanical drawings, and the three-dimensional objects they represent.This can also be useful when discussion ideas of perspective and imaging.
Compare the weights of one kilogram (SI unit of mass) to one pound (English system unit of force) Read More
Show a collection of calibrated masses Read More
Demonstrate the concept of density Read More
Compare the length of one meter (SI unit) to that of one yard (English unit) Read More
Make measurements in the metric system Read More
Means to show different intervals of time Read More
Means to show different intervals of time Read More
Illustrate metric volume units Read More
Illustrate a volume perception paradox Read More
Visualize three-dimensional figures Read More
Visualize three-dimensional figures Read More
Visualize three-dimensional figures Read More
Show things with a skateboard Read More