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The facts are in the numbers! Using atomic mass units, a video lesson explains the carbon atom as the reference mass. Building from that idea, the narrator describes the relative isotopic mass.
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Instructional Ideas
- Create a guided notes document for pupils to complete as they view the video
- Pause the video when the instructor poses a question to discuss as a class
Classroom Considerations
- Expects a solid understanding of isotopes and mass number
Pros
- Provides a link to important background information
- Video includes a summary of important concepts
Cons
- None