Two sets of "explosions" involving prime factors and using them to calculate LCM and HCF. There are some where students are given the two numbers and have to find prime factors, HCF and LCM; there are others where students are given the prime factors and have to find the numbers, HCF and LCM; there are some where students are given the HCF and LCM and need to find the numbers and their prime factors. It it is designed to lead to discussion.
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Great resource - nice to look at and an engaging approach.
I'm loving this new series from alutwyche! yet another one to add to the folder. This is a great way for teaching this topic and gets students to really think about the maths. Thanks, once again, for sharing on TES!
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