Lesson deck
NumberCommon
Error intervals
Half the rounding unit either side on a number line: filled circle for the lower bound, open circle for the upper, then a ≤ x < b.
A free GCSE Foundation and Higher number lesson on error intervals, spec code N15. It has a lesson deck to teach from with a visualiser, a worksheet with answers, a puzzle, an exit ticket, an end of unit test and a method video.
Common
Error intervals
Exit ticket
Error intervals
Puzzle
Four Fours:Error intervals
Test
Decimals and estimation test:Higher
Method video
Error intervals and bounds
More in Rounding, estimation and bounds
- Rounding to 1, 2 and 3 decimal placesLesson · Support
- Rounding to decimal placesLesson · Foundation
- Rounding to significant figuresLesson · Support
- Rounding to significant figuresLesson · Foundation
- EstimationLesson · Support
- EstimationLesson · Foundation
- Error intervals from roundingLesson · Support
- Limits of accuracyLesson · Common
- Bounds in calculationsLesson · Higher
- Revision mat: decimals and rounding, Foundation BRevision mat · Foundation
- Revision mat: decimals and rounding, Foundation ARevision mat · Foundation
- Four Fours: significant figuresPuzzle
- Ramp up: roundingWorksheet · Foundation
- Code breaker: estimationPuzzle