Ok. I’m having a moment. Can anyone help me understand solving something like x^2=9 using inverse operations (on both sides) rather than ‘moving the square over to become + & - sqrt’? I seem to be getting myself confuzzled.
Ha ha. Mine isn’t great but is definitely better with an FP. I don’t do much hand writing now, so when I do I want it to be enjoyable! And lots of ink colours 😁 If your only remembrance is from primary school, then there’s a rabbit hole for you to fall down! cultpens.com/collections/...
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This is the correct rule for guitar purchases. Also works well with bikes and fountain pens.
Use Burkhardt’s ‘many years’ rule. Problems should be based on curric content from many years (<=2) ago. Nrich? I like ‘choose 5 different digits to create a 3 digit * 2 digit calculation’. What would you choose to maximise? How do you know? Surprising answer!
Possibly agree about formal calculations but I think fractions as a comparison are already part of children’s vocabulary (fill the cup half full etc). Better to tighten up the different meanings of fractions at primary (position, comparison, division etc)