Lesson deck
Geometry & measuresSupport
Pythagoras:Finding a shorter side
The hypotenuse lesson's triangle and ladder of boxes, with a subtract in place of the add: square the two sides you know, subtract, then square root. Every answer is a whole number, and one question in the further practice asks whether to add or subtract.
A free key stage 3 and GCSE support geometry and measures lesson on Pythagoras: finding a shorter side, spec code G20. It has a lesson deck to teach from with a visualiser, a worksheet with answers and an exit ticket.
Support
Pythagoras:Finding a shorter side
Exit ticket
Pythagoras:Finding a shorter side
More in Pythagoras and trigonometry
- Pythagoras: finding the hypotenuseLesson · Support
- Pythagoras: finding the hypotenuseLesson · Common
- Pythagoras: finding a shorter sideLesson · Common
- Pythagoras in 3DLesson · Higher
- Trigonometry: finding a side with sineLesson · Common
- Trigonometry: finding a sideLesson · Common
- Trigonometry: missing sides, mixedLesson · Common
- Trigonometry: finding an angleLesson · Common
- Trigonometry: missing sides and angles, mixedLesson · Common
- Exact trigonometric valuesLesson · Common
- Answer chain: PythagorasPuzzle
- Code breaker: PythagorasPuzzle
- Revision mat: Pythagoras’ theorem, Foundation BRevision mat · Foundation
- Revision mat: Pythagoras’ theorem, Foundation ARevision mat · Foundation