3rd Grade Games - Develop understanding of fractions as numbers.


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.


Understand a fraction as a number on the number line; represent fractions on a number line diagram.

  • Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line.
  • Represent a fraction a/b on a number line diagram by marking off a lengths 1/b from 0. Recognize that the resulting interval has size a/b and that its endpoint locates the number a/b on the number line.

Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

  • Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
  • 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.
  • Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers. Examples: Express 3 in the form 3 = 3/1; recognize that 6/1 = 6; locate 4/4 and 1 at the same point of a number line diagram.
  • Compare two fractions with the same numerator or the same denominator by reasoning about their size. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.

Screenshot Name / Description Flag? Rating
Refraction 2
Use tools to refract a laser beam to the right fractions
Battleship Numberline
Use knowledge of fractions to sink battleships
Balloon Pop
Pop ballons in order from smallest to largest fractions
Ratio Martian
Chomp on fractions and avoid non-fractions
Cross the River
Compare fractions to geometric parts to win!
Fraction Flags
Paint parts of a flag to get the right fraction
My Half
Join a story of two brothers who learn about halves
Fractions Quiz
10 practice questions on fractions
Fraction Naming
Name the fraction by picking out the numerator and denominator
Fraction Naming 2
Pick the numerator and denominator to guess the fraction

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