With so many different types of triangles, it can be a challenge for young mathematicians to keep them all straight. Luckily this set of printable triangles is here to engage children in comparing and sorting triangles by their...

Develop young mathematicians' knowledge of two- and three-dimensional shapes with this geometry workbook. From learning about the classifications of different shapes and figures to calculating their area, perimeter, and volume, this...

Investigate the various properties of the number six with this elementary math activity. From simple addition, subtraction, multiplication, and division problems to the creation of hexagonal tessellations, this activity covers all...

[Free Registration/Login may be required to access all resource tools.] Students watch a video to determine if a two dimensional shape can be tessellated and then take a quick assessment to test their skills.

A comprehensive list of 2D shapes and 3D solids with everything from a triangle to a dodecahedron. Includes illustrations and short descriptions of attributes for each.

A set of four practice problems finding the points of quadrilaterals on a coordinate plane.

Welcome to Odd Squad: the zaniest, craziest team of kid investigators around! Explore content below targeted at making elementary-level math a fun, imaginative experience, mixing concepts like arithmetic and geometry with fantastical...

This one page Mathworld site has a number of examples of semiregular tessellations. A definition and a small amount of related information is given at the bottom of the page.