Developing Number Sense · Number Sense

Rounding and Error Intervals

Understanding the limits of accuracy and the impact of rounding on subsequent calculations.

Key Questions

  1. 1Why is it important to know the upper and lower bounds of a measurement?
  2. 2How does rounding early in a calculation lead to significant errors in the final result?
  3. 3How do we determine the level of accuracy required for different real world tasks?

National Curriculum Attainment Targets

KS3: Mathematics - Number
Year: Year 8
Subject: Mathematics
Unit: Developing Number Sense
Period: Number Sense

Suggested Methodologies

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