Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.
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|High School Free||This version is for high school classes.||40-50 min|
|AP Free||This version is for ap classes.||50-75 min|
Most content from the Expanded Handbook is included in the corresponding STEM Case.
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|High School||The Expanded Handbook covers allele frequency, directional, stabilizing, and disruptive selection in addition to the concepts covered in the handbook section of the High School Case||20-25 min|
|AP||The AP Handbook is identical to the handbook section in the AP Case||20-25 min|