Instructional Video

Error Intervals

Curated and Reviewed by Lesson Planet

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
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