Free projects and video tutorials on using Google SketchUp to make 3-D models. For K-12 and also for adults. A teaching guide is also available.

Sixth graders explore cube nets in an effort to understand what properties are common to all nets that form a cube. Students work hands-on with nets and are then pushed to use their experience to visually determine whether other nets...

Tom Richey learning module engages us in the history of the Eastern Roman or Byzantine Empire, teaching us about the founding of Constantinople, Christianity and the Byzantine-Arab Wars. Unit learning materials include primary sources,...