Ratios are a third use of fractions. They are illustrated in this video by comparing sets of chips and tiles. Then ratios are related to the part-to-whole concept of a fraction. Two word problems are solved using the part-to-whole concept of a fraction and ratios. Then two equal ratios are used in a proportion for solving word problems. Finally, the Dots mat and spinner from the Fraction Bars materials are used to illustrate ratios of numbers of dots from the mat, and the game "Ratio of Dots" is demonstrated. This series of 22 videos ends with the statement that fractions and their operations can be taught with understanding.
Tagged under: Ratio,comparing sets,part--,fractions,word problems,proportion,equal ratios,Fraction Bars,fraction game,understanding,visual,meaningful,intuitive,sense-making,home ed.,teaching,learning,instructional video,Albert B. Bennett,Jr.
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