This series integrates and enhances the teachings of mathematics, science and technology in grades 3 to 5. Each program includes hands-on classroom and home activities, virtual field trips, subject-matter experts and the character Dr. "D" -- the Tree House Detectives' next-door neighbor and mentor. The Tree House Detectives form an ethnically diverse cast of inquisitive school children who use problem-based learning strategies and scientific inquiry to investigate a variety of issues and problems.

1. The Case of the Great Space Exploration

2. The Case of the Ocean Odyssey

3. The Case of the Zany Animal Antics

4. The Case of the Technical Knockout

Block Feed: 9/24; 2/23