Marvelous Math Workshop (mp3)
By Susan C. Anthony
Learn a foolproof method for ensuring that children master their facts, as well as a potpourri of games and tricks to improve accuracy and enable children to compute huge problems easily and correctly. These include Krypto, adding by endings, Gelosia multiplication, and short division. You'll also learn "Casting Nines", a quick technique for checking computation which many children view as a sort of game and which will improve their accuracy, especially with large problems.
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