## A development of a unit on number theory for use in high school, based on a heuristic approach |

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### Contents

LESS0N PLANS AND J0URNAL | 21 |

Journal for Lesson on Prerequisites | 24 |

Journal for Lesson 1 50 | 31 |

Copyright | |

25 other sections not shown

### Common terms and phrases

0ne student a+b+c a|b and b|c Ask the students assigned problems b|c then a|c booklets C0NCLUSI0N composite number contradiction d|a and d|b d|a+b d|c then d|a+b+c definition of divides diagram digit numbers distributive law divisibility rules divisible by primes Emphasize equation Euclidean algorithm explain expression false greatest common divisor heuristic approach high school Hint homework last digit lesson mastery learning Mastery Test mathematics multiple number is divisible Number of Students Number Theory numbers larger numerical examples prerequisites prime factors prime larger prime numbers Problem Sheet proof of Theorem prove the theorem prove Theorem questions remind the students sentence sieve method Sieve of Eratosthenes solving students were asked study period Summarize by saying Summarize the response teacher teaching Tell the students Theorem 9 true valid want to show whole number whole number x a write a proof write the hypothesis