Area Two

Topics: Starter | Area | Geometry | Mensuration | Problem Solving | Shape

• Carol, Sheffield PArk Academy
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• 3 NQTs in the department, I'm new subject leader in this new academy - Starters R Great!! Lovely resource for stimulating learning and getting eveyone off to a good start. Thank you!!
• Mark, New Zealand
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• I used this for a struggling class of 13 year olds and it worked really well. From simple triangles of area 2 we used it to show that obtuse triangles can be made too: the grid makes working out areas so easy.
  
  Next time I will give them a sheet to record their findings though.
• Matt, Seb and David, Chatham Grammar School for Boys
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• We reckon there are at least 25!
• Miss Reakes, West Island School, HK
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• This is a great starter for a mixed ability class due to it's open ended posibilities. The brighter ones using fractions other than a half didn't want to stop! I gave dotted paper to the weaker ones to start them off immediately.
• C J Southward, Limehouse School Cumbria
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• My year 9s scored way over 45 including trapeziums and long triangles.
• William Hulme Grammar Academy, Year 8 Set 1
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• We got 18 different shapes but when you rotate and manipulate these base shapes we had over 50. But we only 10 minutes on it as a starter.
• M Mc Crea, Holy Cross College
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• My students took a while to grasp the complete concept but then some of the Girls especially warmed to the task and after a gentle nudge, found over 140, with rotations and all the different shapes already mentioned by the other teachers here.
• Mr Bentley, Braeview Primary, Happy Valley, Australia
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• We found 26 different shapes that totalled over 300. We stuck to regular shapes to make it easier. Five of my mathematicians stuck with this for nearly an hour.
• Mike, New Jersey, USA
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• I suspect that there are thousands (not counting reflections/rotations)
  for example (0,0)(2,1)(1,2)(3,1)(5,2)(4,1)(0,0), and all those points can be slid individually horizontally, making tons of permutations.

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