Lesson deck
NumberSupport
HCF:The ladder method
The HCF with the ladder: divide both numbers by 2, 3 or 5 until none of them is a factor of both, then multiply down the side. The first rung is given on the first questions and the ladder is on every question.
A free key stage 3 and GCSE support number lesson on HCF: the ladder method, spec code N4. It has a lesson deck to teach from with a visualiser, a worksheet with answers, an exit ticket and an end of unit test.
Support
HCF:The ladder method
Exit ticket
HCF:The ladder method
Test
Number test:Foundation B
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