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Once all groups finish, each group records their info on the class decay table (on the board) and we calculate the averages of the class. Isotope Concepts: Students should begin to see the pattern that each time they dump out their M&Ms, about half become stable.

New information needed to be introduced with parent and daughter isotopes.They then gather the radioactive, or M side up M&Ms, put them back in the container, and then pour them out again. and continue this process until all M&Ms are stable, or M side down.During each trial, students record the number of radioactive parent isotopes and record this in a data table.At the same time, middle-school girls develop deep and close friendships, separating from their families and forming their own rewarding social universes.Here’s how one 15-year-old remembers middle school: “In sixth grade I went to a new school.They not only enjoyed this activity, but they really gained a better understanding of it as well.

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