Rules of Thumb.

Holmes, P.

Notes FAQ Contact Us

Back to results

Peer reviewed

ERIC Number: EJ098600

Record Type: CIJE

Publication Date: 1974

Pages: N/A

Abstractor: N/A

ISBN: N/A

ISSN: N/A

EISSN: N/A

Available Date: N/A

Rules of Thumb

Holmes, P.

Mathematics in School, 3, 2, 22-24, Mar 74

The major portion of the article establishes the basis for the stated rule - to divide by a fraction, turn it upside down and multiply. With this background, three justifications for the rule are given. Several possible errors in students' use of the rule are noted. (LS)

Descriptors: Algorithms, Computation, Division, Elementary School Mathematics, Fractions, Instruction, Mathematics Education, Number Concepts, Rational Numbers

Publication Type: N/A

Education Level: N/A

Audience: N/A

Language: N/A

Sponsor: N/A

Authoring Institution: N/A

Grant or Contract Numbers: N/A

Author Affiliations: N/A