New from the award-winning NOVA series, a collection of six videos on the key topic of math. Perfect for providing visual support to the curriculum, this set has been priced at only $89.95- for six videos! This collection includes NOVA's most compelling programs on math, making it the perfect addition to any science curriculum. The set includes The Proof, Trillion Dollar Bet, Decoding Nazi Secrets, Lost at Sea: The Search for Longitude, Time Travel and Chip vs. the Chessmaster.