PTB Converting to and from standard form
PTB Converting to and from standard form Read More »
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 …
(Not going) Back to school Read More »
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 …
Product sum puzzles for expanding and factorising quadratics Read More »