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Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson XXIV: Ratio, Rate, Percent

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Table of contents

Title Card: A Brief Course in Mathematics for Elementary School Teachers
Title Card: XXIV Ratio, Rate, Percent
Title Card: Stewart Moredock
Physical Examples of Comparisons by Division
- 3 to 1, 12 ÷ 3, 12/4
- 2 to 3, 6 ÷ 9, 2/3
- 3 to 2, 9 ÷ 6, 3/2
- Summary of Generalizations
Comparing Fractions
- 2/3 to 5/6
Equivalent Ratio Expressions
- Summary of Generalizations
- Example: 85 to 51
- Example: 6,300,000 to 4,500,000
Pairs of Numbers to Indicate Rates
- Using Rates to Establish Equivalent Ratios
- Example: 2/5 = 14/n
Percents
- Example: 25%
- Applications of Percent
  - 13 is What % of 20
  - What is 15% of 30
  - 48 is 80% of What Number
Summary of Lesson
Title Cards: Credits
- XXIV Ratio, Rate, Percent
- A Brief Course in Mathematics for Elementary School Teachers
- Produced by School 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

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Title:	Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson XXIV: Ratio, Rate, Percent
Identifier:	e_math_02003
Description:	Instructor Stewart Moredock (Sacramento State College) gives a lesson on teaching elementary school mathematics. Topics include: patterns for division on rational numbers, using the number line to check solutions for division problems, reciprocals. Color picture, sound. Eastman Kodak edge code reads "plus plus," which correlates to 1968. Production title: Ratio Rate, Percent. Print No: 112. Number on can: 1100Film is suffering from vinegar syndrome causing the film images to turn pink.
Country:	United States
State:	California
City:	San Francisco
Date:	1968
Creator	School Mathematics Study Group (producer)
Source:	School Mathematics Study Group Records
Contributor:	Moredock, Stewart (lecturer)
	Abad, Jack (assistant)
	W.A. Palmer Films, Inc. (live camera recording)
	The National Science Foundation (financial support)
Language:	en
Publisher	Dolph Briscoe Center for American History
Original Format:	color film; sound tracks, 16mm

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Modern Learning Aids; A Brief Course in Mathematics for Elementary School Teachers; Lesson XXIV: Ratio, Rate, Percent

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