These activities run online in flash. They are mostly brief explanations of a concept with an interactive exploratory component to illustrate. Interface is engaging, if a bit busy. An engaging way for kids to review math concepts K-6.
Site that presents flexible presentation of many types of curriculum content that students may find engaging. Many interactive activities for re-learning, review and practice.
Article about the learning benefits of using podcasts in the social studies curriculum when the goal was to try to infuse reading and writing into the curriculum.