These activities introduce pupils to a fully open ended maths investigation focussing on triangular number patterns. There are detailed teacher notes aimed at the non-maths specialist for support in the teaching of this topic. The unit is aimed at upper KS2 – KS3. It can be used as a transition project or as assessment of AT1. Other topics covered: Number
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Interesting investigation showing how triangle numbers can arise in a real problem - how often n strangers have to shake hands so that everybody has met. All resources for a lesson are included: good quality animated slides, lesson plan, results sheets etc.
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