National Council of Teachers of Mathematics
The Math Forum: The Cylinder Problem: Middle School Lesson
This lesson offers an interesting, hands-on experience for middle school students studying cylinders. Students will create cylinders, and measure and compare their volumes.
Texas Instruments
Texas Instruments: Using a Table to Make Conjectures
This activity is used to practice making tables for investigating a geometrical problem and to develop techniques for trying different constructions to prove a theorem.
TED Talks
Ted: Ted Ed: Who Built the Pyramids
Who built the pyramids? The colossal geometric monuments found at Giza and elsewhere in Egypt are some of Earth's most impressive constructions.
Khan Academy
Khan Academy: Activity: Exhibit Design Challenge
From the San Francisco 49er's Museum Education Program which promotes STEAM concepts, students construct a three dimensional (3-D) artifact stand that is the exact replica of "The Catch" which is 70 inches high. Emphasis is placed on...
Other
University of Edinburgh: Glossary of Introductory Computer Graphics Terms
This website, from the University of Edinburgh, provides a lengthy glossary of computer graphics terms written by Olin Lathrop, author of "The Way Computer Graphics Work". This site provides simple definitions of basic terms; no graphics...
Other
Ohio Resource Center: Shadows
This applet helps students visualize the shapes of shadows cast by a cube with a light coming from different angles. This helps students visualize shapes from different angles and to identify, sketch and classify the cross-sections of...
University of Cambridge
University of Cambridge: Nrich: Seven Sticks
On this one page website sharpen your logic, triangle properties, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
Curated OER
Unesco: Kenya: Fort Jesus, Mombasa
The Fort, built by the Portuguese in 1593-1596 to the designs of Giovanni Battista Cairati to protect the port of Mombasa, is one of the most outstanding and well preserved examples of 16th Portuguese military fortification and a...
Khan Academy
Khan Academy: Triangle Side Length Rules
Practice solving problems with triangle side length rules.