To further explore tallying as a data-collection strategy, students used tallies to record the results of a Rock, Paper, Scissors game. Students played for 5 minutes. After each round, they made a tally mark in the chart to indicate either the winning gesture or that the round ended in a tie.
The students were encouraged to speculate about whether one gesture would win more often than the others. We discussed the chance of winning a game compared to the chance of tying. Using tally marks to record the results, students discovered that winning happens about twice as often as tying
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AnthonyArchives
March 2017
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