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Diffusion STEM Case

As a physician assistant, students must learn about diffusion to save the life of a person poisoned by chlorine gas that was released into a small town following a train crash.

STEM Cases are interactive explorations in which students practice problem-solving and critical thinking as they solve a real world problem as a STEM professional.
  • View students results in realtime.
  • Cases take 30-90 minutes to complete.
  • Student progress is automatically saved.
  • Complete in multiple sessions.


More About STEM Cases

Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.

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LevelDescriptionEstimated Time
High School  This version is for general biology classes 30-45 min
AP  This version is for AP level classes 40-50 min

Expanded Handbook

More About Handbooks

Most content from the Expanded Handbook is included in the corresponding STEM Case.

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LevelDescriptionEstimated Time
High School  The Expanded Handbook covers the importance of water in the body, its composition and concentration gradients, in addition to the concepts covered in the handbook section of the High School Case. 15-20 min
AP  This Handbook is identical to the handbook section in the AP Case 15-20 min


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