Mathematicians are creating their own version of the periodic table that will provide a vast directory of all the possible shapes in the universe across three, four and five dimensions, linking shapes ...

Help sort shapes in a shape factory. Look at examples of shapes to see if they belong in a polygon group, or set. Examine examples of shapes that do not belong in the set. What features do you think ...

After doing the Shapes Lab, have kids do this hands-on activity to apply what they've learned about shapes. Demonstrate how to connect straws with paper clips. As groups finish building their shapes, ...