This discovered is effective when it is a means of becoming efficient in applying it to the solution of problems. ... but it is supplemented by the bulletin board, charts, models, films, pictures and by mimeographed problem sheets. ... After learning how to multiply plus and minus numbers, timed tests build speed and a graph of each studenta#39;s scores shows ... However, this short cut should be used when the student understands that multiplying by 25 is equivalent to multiplying by 100 and anbsp;...

Title | : | Minnesota Journal of Science |

Author | : | |

Publisher | : | - 1957 |

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