WYR: Birthday Cake Edition Anchor Chart Example 1

Check student understanding of fractions with this quick check. This document (linked in the resources tab) is able to be printed for use of an anchor chart or used online. Color & black and white versions included.

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

Special consideration: Some students selected 1/9 with the understanding that it was a smaller amount, citing "While 1/3 is more, but I wouldn't be able to eat that much cake!"

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

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
• 4.NR.2.2 Compare decimal numbers to the hundredths using the benchmarks 0, 0.5, and 1.0, concrete area, and linear models. Use the symbols for is equal to (=), is less than (<), and/or is greater than (>).
  • 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