Addition And Subtraction Of Rational Numbers

Duration: 1100

Year Published: 1959

Format: 16mm

Sound: sound

Description: From the SMSG (School Mathematics Study Group) Brief Course in Mathematics for Elementary School Teachers. With Stewart Moredock.

Complete Record: Discusses the properties of rational numbers. Uses the idea of direction to explain magnitudes and negative numbers. Introduces the concept of absolute value. Presents examples of the sums and differences of positive and negative numbers.

3 users have this film:
Library of Congress, Prelinger Archives, Visual Studies Workshop

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