Year 8 · Maths · beta

Estimation and rounding

This unit helps pupils understand rounding to different decimal places, and significant figures. Pupils will also learn how to truncate numbers and understand the contexts in which these skills are useful. The unit ends will an exploration of rounding and inequality errors.

This is an attributed Oak National Academy lesson sequence, not a completed or academically approved DASKEREL course. Supporting transcripts may depend on video, images, practical equipment or teacher explanation. Follow each lesson’s supervision guidance. For religious education and RSHE, follow the school’s syllabus, policy and safeguarding procedures.

Prior knowledge

  • Round numbers to nearest 10, 100, 1000
  • Round decimals to 1 or 2 decimal places
  • Estimate calculations using compatible numbers

Source curriculum references

  • Round numbers and measures to an appropriate degree of accuracy [for example, to a number of decimal places or significant figures]
  • Use approximation through rounding to estimate answers and calculate possible resulting errors expressed using inequality notation a<x≤b
  • Use a calculator and other technologies to calculate results accurately and then interpret them appropriately
  • Appreciate the infinite nature of the sets of integers, real and rational numbers

Oak source metadata. DASKEREL has not independently verified school-level coverage.

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