Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers - Lesson XXII: Division of Rational Numbers; Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson XXII Division of Rational Numbers

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  • Title Card: A Brief Course in Mathematics for Elementary School Teachers
  • Title Card: XXII Division of Rational Numbers
  • Title Card: Stewart Moredock
  • Summary of Patterns for Arithmetic of Rational Numbers - Addition, Subtraction, and Multiplication
  • Review of Division of Whole Numbers
  • Examples of a ÷ c = a/c 5 ÷ 2
  • 2 ÷ 5
  • 7 ÷ 4
  • Summary of General Pattern
  • Examples of a ÷ 1/d = a x d
  • 3 ÷ 1/2
  • 3 ÷ 1/4
  • 5 ÷ 1/3
  • Summary of General Pattern
  • Examples of a ÷ c/d = (a x d) / c
  • 3 ÷ 3/4
  • 2 ÷ 3/4
  • 5 ÷ 2/3
  • Summary of General Pattern
  • Examples of a/d ÷ c/d = a/c
  • 9/5 ÷ 3/5
  • 13/5 ÷ 3/5
  • Summary of General Pattern
  • Example of a/b ÷ c/d = a/b x d/c 5/4 ÷ 2/3
  • Summary of General Pattern
  • Reciprocals
  • Summary of General Pattern
  • Title Cards: Credits XXII Division of Rational Numbers
  • A Brief Course in Mathematics for Elementary School Teachers
  • Produced by School of Mathematics Study Group
  • with financial support from The National Science Foundation
  • Lecturer: Stewart Moredock, Sacramento State College Assistant: Jack Abad, San Francisco Unified School District
  • Live Camera Recording: W.A. Palmer Films, Inc San Francisco