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Rounding a number sometimes creates more problems. A video lesson explains the error intervals for rounded and truncated numbers. The narrator expresses the error as a compound inequality and uses a number line as a reference.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Pause the video at the presentation of each example to ask for ideas to solve it
- Create a large number line to the hundredths place to use as a reference
Classroom Considerations
- Students should have a solid understanding of using the number line to the hundredths place
Pros
- Instructor thoroughly explains the concept supporting each interval
- Reviews important background information within the lesson
Cons
- None