In the deserts of Arizona and New Mexico, some tiny creatures show just how quickly natural selection can turn a mutation into an advantageous adaptation. Watch a video about rock pocket mice, who show that one small change can make all...

Students investigate the types of footwear worn during ten periods of history.  In this secondary, art/math/social studies lesson, students view documentaries and popular films to study the time periods.  Students research the...

Middle schoolers create instructional videos. in this video instructional activity, students choose a subject area and topic to make their own how-to video. They research this topic and film their video using a flip-camera. 

Young scholars explore the concept of polyhedra. In this polyhedra instructional activity, students use the Internet to manipulate virtual polyhedra models. Young scholars create polyhedra models from straws, toothpicks, cardboard,...