Lesson Plan

MASS, MASS – Who Has the MASS? Analyzing Tiny Samples

What is it worth to you? A hands-on lesson plan asks groups to collect weights of different combinations of coins and calculate weighted averages. They use the analysis to understand the concept of an isotope to finish the third lesson plan in a series of six.

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Instructional Ideas
  • Begin the lesson with a discussion and examples of weighted averages such as in calculating semester grades
  • Have pupils create a chart to organize data collected from the weight of the coins
Classroom Considerations
  • Allow time to prepare materials for the activity
  • Includes important background information for both teachers and students
  • Provides questioning suggestions to use throughout the lesson
  • None