Age range: 11 - 15
Resource type: guide, lesson plan
Author: Katja Maaß
In this activity students work on several puzzles concerning a rope, which they can solve by working with variables. The work on variables is twofold: students determine how variables refer to varying unknowns, and students construct and use expressions with variables to solve the puzzles. The task doesn’t prescribe a solution procedure. This openness of the task allows for diversity in the chosen strategy as well as in the level of achievement. Students can discuss and support each other.
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