The Advenures of Jasper Woodbury™ consists of 12 video-based adventures that focus on mathematical problem finding and problem solving. In particular, each adventure provides multiple opportunities for problem solving, reasoning, communication and making connections to other areas such as science, social studies, literature and history (NCTM, 1989; 1991). Jasper adventures are designed for students in grades 5 and up. Each videodisc contains a short (approximately 17 minute) video adventure that ends in a complex challenge. The adventures are designed like good detective novels where all the data necessary to solve the adventure (plus additional data that are not relevant to the solution) are embedded in the story. Jasper adventures also contain "embedded teaching" episodes that provide models of particular approaches to solving problems. These episodes can be revisited on a "just-in-time" basis as students need them to solve the Jasper challenges. Each adventure is designed from the perspective of the standards recommended by the National Council of Teachers of Mathematics (NCTM).