Do Twelfths Terminate or Repeat?

  • Do Twelfths Terminate or Repeat?

    Rebecca Ambrose and Erica Burnison
    While seventh-grade students group fractions, they learn more about decimals, in particular, and division, in general.
    When we find the decimal equivalent of a fraction with 12 in the denominator, will it terminate or repeat? This question came from a seventh grader in author Erica Burnison’s class as the student was pondering a poster generated by one of her classmates. Not only did we find the question intriguing, but it also affirmed our belief in the power of tailoring instruction to students’ interests and needs.