A funny, entertaining introduction to Ben Franklin and his many inventions, including the story of how he created the "magic square." A magic square is a box of nine numbers arranged so that any line of three numbers adds up to the same number, including on the diagonal! Teachers and kids will love finding out about this popular teaching tool that is still used in elementary schools today!
- ISBN10 0756904641
- ISBN13 9780756904647
- Publish Date 1 February 2001
- Publish Status Out of Print
- Out of Print 13 September 2021
- Imprint Perfection Learning
- Format Hardcover (Library Binding)
- Pages 48
- Language English