Mathe-Puzzles und Brainteasers, Klassen 6-8: Über 300 Rätsel, die Mathematik und
41,56 €
His two books for children are superb collections of such problems. Like Goldilocks' third bed, they are neither too hard nor too soft, but just right. --MARTIN GARDNER, puzzle creator and author "This is a rich set of diverse mathematical problems that can enrich a math class, stimulate children to play with mathematical ideas, or give gifted children a chance to solve interesting problems that lie beyond the limits of most school mathematical curricula.".
Jetzt bei Ebay:
