Uncategorized

Multiplication madness? (2)

I started writing about multiplication methods yesterday (read Part 1 here), but waffled for rather longer than necessary, and as a result, didn’t actually get to discuss what I originally wanted to, namely which from grid, lattice (Gelosia, Chinese, Napier’s etc) or long multiplication we should be teaching as a method to pupils.  In one …

Multiplication madness? (2) Read More »

Memory and the Internet

Still checking through my old post archive and I found this. Thought it was worth reposting because a) it’s reminded me what a good programme “The Digital Human” is (I will have to check when it’s on again) and b) it seems even more relevant in the light of imminent GCSE curriculum changes. With a …

Memory and the Internet Read More »

The Cross Method for factorising quadratics

Factorising quadratics is one of those topics that, for some reason, students just don’t seem to get. I always teach factorising straight after expanding; it seems that students understand the basic principle of “working backwards”, and can even factorise fairly simple quadratics (all positives, of course) pretty quickly and simply. However, I’ve never quite managed …

The Cross Method for factorising quadratics Read More »