This is an excellent trial activity that I have used with my fifth graders. It would also be suitable for fourth and sixth graders.
Use one activity, or all four!

This set includes:
-A vocabulary chart
-Two individual trials using an online spinner manipulative
-A partner questioning activity that prompts students to analyze data and make predicitons
-A third trial to be used as an extention or third choice activity

These trials can also be adapted to be used in-class with spinner templates, a pencil, and a paperclip!

Enjoy!

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Probability Trials for the Computer Lab by Lauren Felsheim is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.