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Balancing chemical equations is difficult even for top learners, and oxidation-reduction reactions can be the most difficult to understand. Using the half-reaction method, the instructor demonstrates four examples. Learners can watch the video again and again until the process make sense.
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NGSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Assign the video as homework and use class time to practice similar problems
- Pause the video after each example to answer questions and clarify the procedure
Classroom Considerations
- Ensure learners have access to the Internet if assigning as homework
Pros
- Video includes a good mix of problems to demonstrate different scenarios that may emerge when balancing redox reactions
- Uses a consistent strategy for all four problems, allowing scholars to transfer knowledge to different types of problems
Cons
- The writing is sometimes cramped and difficult to follow