Fraction Bars

Fraction Bars are a type of mathematical manipulative, developed in the sixties by Albert B. Bennett, Jr.[1] They provide visual illustrations of mathematical operations with fractions[2] to gain better understanding of these operations.

A complete Deck of 49 Fraction Bars.

Overview

Fraction Bars for halves, thirds, fourths, fifths, sixths, tenths, and twelfths form a complete deck. These bars are a part-to-whole region model for teaching the basic concepts of fractions, equality, inequality, addition, subtraction, multiplication, division, and ratios. They are plastic coated so marking bars with water-base pens can be washed off. Fraction Bars are used for teaching fractions in schools and for preparing teachers.

gollark: I decided to turn evil and build a magic DRM blob into potatOS.
gollark: ++list_deleted moon
gollark: The Moon, however, is *not* real.
gollark: JOEK! Obviously the earth is real and no-earthers are ridiculous.
gollark: That person is really working for the government, trying to discredit the no-planeists to cast doubt on the (correct) no-earthers.

References

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.