WYR: Birthday Cake Edition Example 2

Check student understanding of fractions with this quick check. 

Anticipated misconception: Students may believe that the fraction with the larger denominator will have the greatest value.

Solidify and confirm 1/3 is greater than 1/9 with a visual model.

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Standards

• 3.NR Numerical Reasoning
  • 3.NR.2 Represent and compare fractions in multiple ways using part-whole relationships
    • 3.NR.2.1 Identify unit fractions as the quantity formed by one part when a whole is partitioned into 2, 3, 4, 6, or 8 equal-sized parts. Express each part as a unit fraction of the whole
    • 3.NR.2.2 Represent fractions from 0 to 1 using concrete, set, area, and linear models, and write them in standard form and word form. Limit denominators to 2, 3, 4, 6, and 8
    • 3.NR.2.3 Express whole numbers as fractions and identify fractions that are equivalent to whole numbers. Limit denominators to 1, 2, 3, 4, 6, and 8
• Use reasoning strategies to sort the decimals into categories of less than or greater than 1/2. Have students explain their thinking for the placements.
  • 4.NR.2 Represent and compare fractions in multiple ways using part-whole relationships
    • 4.NR.2.6 Compare fractions and mixed numbers with like and unlike denominators applying benchmark fractions such as 0, 1/2, and 1 using the symbols for is equal to (=), is less than (<), or is greater than (>). Limit fractions to denominators of

Resources