An always, sometimes, never activity looking at various properties of triangles (angles, sides, perimeter, area, symmetry and a few more).
Includes a wonderfully sneaky (but potentially confusing!) example of triangle area sometimes being the product of the lengths of all three sides.
A good way of stimulating discussion, revising a range of topics and exposing misconceptions.
Please review and give feedback, whether you like the activity or whether you don’t!
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A really nice activity here using the 'always, sometimes and never' format.<br /> All answers included. It would have been nice to have seen more discussion slides for other statements and not just the area one, but you can build these into the activity as students suggest answers and counter each other - the slides would just be useful as a prompt or to show students/classes that don't discover the reasons for themselves, etc. (I hope that makes sense). Thanks for sharing.
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