What should Ms. Venegas do when her students finish a genetics activity faster than expected?

Moving on with the unit and using the extra time to incorporate a challenging activity is a productive choice in this scenario. This approach allows for the efficient use of class time and ensures that learning continues at a steady pace. It capitalizes on the students' enthusiasm and engagement after completing the genetics activity quickly. By introducing a challenging activity, Ms. Venegas can deepen students' understanding, encourage critical thinking, and keep them motivated as they explore related topics in greater depth. This method not only reinforces content knowledge but also promotes a sense of accomplishment and progress in their learning journey.

Using additional time for a challenging activity can help differentiate instruction, meeting the needs of advanced learners while still engaging the entire class. It fosters an environment where students are encouraged to delve deeper into their studies instead of leaving them idle after completing the initial task.