Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.
|High School Free
|This version is for high school classes.
|This version is for ap classes.
Most content from the Expanded Handbook is included in the corresponding STEM Case.
|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
|The AP Handbook is identical to the handbook section in the AP Case