# CCSS Math Standard: 4.NF.2

Extend understanding of fraction equivalence and ordering. 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 refer to the same whole. Record the results of comparisons with symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model. (Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.)

• #### Numerator or Denominator: Which has more power in a fraction?

What do you do with students who already get their fraction operations? Give them a contrived project about recipes or pizza slices? Make them solve annoyingly hard practice problems? Please. Here, we get students thinking in a whole new way, pondering which has more power, the numerator or denominator.

• #### Fraction Ordering Tournament

Students will use their understanding of how to order sets of fractions to work through a Fraction Ordering Tournament.

• #### Fraction Puzzlers: Add and Subtract Fractions To Reach A Number

Students try to reach a specified number by adding and/or subtracting three fractions using only the digits 1 through 6. This set of challenging math puzzles comes from the series Advanced Common Core Math.