A set of fraction, decimal, and percentage circles to use with your students when teaching equivalency.
Use this resource as a visual for your students when learning about equivalent fractions, decimals, and percentages.
Print out the circles on cardstock and cut out the pieces. Then, attach a small magnetic strip to the back of each one to be used on the magnetic whiteboard.
You and your students will be able to manipulate the pieces to show different equivalencies. Alternatively use these wheels when teaching equivalency in your guided math groups.
The fractions are labeled as unit fractions so this resource also works well when teaching students to compose and decompose fractions.
For those of you who do not teach percentages in your grade level, we have provided a download that includes only the fraction and decimal wheels. Use the drop-down menu to choose the download the works best for you and your students.
Download this resource as part of a larger resource pack or Unit Plan.
Common Core Curriculum alignment
Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.
Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3. Explain why the fractions are equivalent, e.g., by using a visual fraction model.
Explain why a fraction a/b is equivalent to a fraction (n × a)/(n × b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to ...
Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions ref...
Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model. Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/...
Understand a fraction a/b as a multiple of 1/b. For example, use a visual fraction model to represent 5/4 as the product 5 × (1/4), recording the conclusion by the equation 5/4 = 5 × (1/4).
Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.
Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.
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