The Second Scientific American Book of Mathematical Puzzles and Diversions
This delightful collection from the magician of math introduces readers to magic squares, the Generalized Ham Sandwich Theorem, origami, digital roots, an update of the Induction Game of Eleusis, Dudeney puzzles, the maze at Hampton Court palace, and many more mathematical puzzles and principles.
A photocopiable collection of 40 games and activities which can be used in the teaching of British Sign Language as well as English. It includes guessing, searching and matching games, quizzes, card games, puzzles, problem solving, role play and simulation games.
Activity books - 10 
English Puzzles - 4 
