Resources and Tools for Elementary Math Specialists and Teachers
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    • 4
      Good Practice with Doubling and Halving
      By bethb on 09/27/2012 - 11:52
    • Not only is this a great lesson for data displays, but this lesson also requires students to double or halve the weights given.
    • 4
      A double/halve fan
      By Uncle Bob on 10/30/2012 - 11:16
    • The live activity (doubling/halving a group) is a good idea. I wish there were a few more live examples in number and in other contexts like doubling/halving a length of string (unmeasured). I think when later it's time to operate on multi-digits and fractions/decimals, it would be well to get the doubling/halving down before using general operands.