PTB Squares, cubes and their roots
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The Storeroom Blog
Resources, musings & lesson ideas for teaching, learning & enjoying maths.
Sum of squares
Joseph Louis Lagrange proved in 1770 that every positive integer can be expressed as the sum of 4 or fewer square numbers; see Lagrange’s Four Square Theorem.
(Not going) Back to school
This time of year I usually return to my blog, feel guilty about having done nothing with it for yet another academic year, write a post about how things will be different, then promptly neglect it again for another twelve months. I blame motherhood entirely for this; I have spent a large proportion of the …
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Rally Coach
During my NQT year, I worked at a school that was big on cooperative learning and using Kagan structures. I confess, I was never a huge fan – all the jazzy names got a bit complicated and all seemed to have the words “Round” or “Robin” in them. Interestingly, that fad seems to have fallen by the wayside now …
Product sum puzzles for expanding and factorising quadratics
Working forwards These puzzles are useful as a starter or quick introductory activity for expanding standard quadratic expressions. Working backwards Once students have got the hang of how these work, ask them to work the other way around and provide the product and sum to give the required answers. When dealing with negatives, I ask …
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Effective examples in the digital age
Picking apart and reworking my lessons from last year, I noticed that I almost exclusively model worked examples by handwriting “live” rather than pre-typing. I don’t recall making a conscious decision to do this, but following a discussion with my husband this weekend about print vs digital media, I thought I’d think more critically whether …
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Start, Stop, Change, Continue 2018
In two weeks I’m returning to work after pretty much a year off on maternity leave. I had such plans – I was finally going to sort out my website, blog more, organise the stupid pile of resources on my memory stick, finish my #mathsconf blogs from 2017 (16, 15, …) – the list goes …
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#mathsconf13
#MathsConf13 took place last Saturday, and as usual, was another fantastic day of cheap CPD. Sadly, I missed the London conference in the summer, so I was really looking forward to this one. It definitely didn’t disappoint, despite being a bit of a struggle at nearly 8 months pregnant! One highlight of the day was …