Fraction War

Junior (Age 9 – 12)

Curriculum Goal

Junior: Number Sense

  • Compare and order fractions (i.e., halves, thirds, fourths, fifths, tenths) by considering the size of the numerator and denominator.

Context

  • Students work in pairs, either in class or in breakout rooms on a video conference chat.
  • Students should have prior experience with conceptual properties of fractions, including equivalent fractions.

Materials

  • In-person version
    • Fraction cards (Appendix A)
    • Fraction blocks/visuals
    • Paper
    • Pencil

Lesson

Junior:

  • Divide the shuffled deck of fraction cards between players.
  • Each player turns over two fraction cards.
  • Players say the names of their fraction cards out loud and the player with the greatest fraction takes all four cards.
  • Players can determine who has the greatest fraction by finding the common denominator or using visuals/manipulatives.
  • In the event there is an equivalent fraction, each player deals out three more cards (similar to the game W-A-R). The fourth card is flipped. The player with the greater fraction collects all the cards on the table.
  • Play continues until one player has collected all cards.

Look Fors

  • Can students determine the value of the fractions on their cards?
  • Can students determine whether fractions are equivalent?
  • What strategies do students implement to determine the value of the fractions?

Extension

  • The player with the smallest fraction wins.
  • Add certain types of fractions to the deck to reinforce those fractions (equivalent fractions, simple fractions, mixed fractions, improper fractions).
  • Include cards with fraction problems that students must solve to determine the greater fraction.

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