Learners study the history of Chinese technology by identifying when and where items were invented or discovered.

Students make a placemat. In this art lesson students make a unique placemat. The students decorate their placemat with photos of themselves, stickers, etc. The placemat is laminated or sealed with contact paper.

Harry and his friend make a wager on a game of chess and discuss the concept of exponential growth in this short Cyberchase video. [3:26]

NPR presents a slide show on the life of chess sensation Bobby Fischer who "became a cold war hero by dethroning the Soviet world champion" Boris Spassky in 1972. Fischer was the first U.S. born world chess champion.