Tagged: substitution

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Musings on substitution

How do you teach algebraic substitution? It occurred to me this week as I was introducing it to a mid-low ability class that you can make an analogy with sporting substitutions. This may be something you know already and totally obvious; (I am often slow to catch on to these ideas!) but if you haven’t heard this one before, read...

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It all began when a line met a circle…

I got a bit nervous this week. I had to teach my high-flying year 11s how to solve simultaneous equations algebraically when one is a circle and another is linear. This was the first time I’d taught this topic and one I foresaw as having many potential obstacles to them gaining a good understanding. It links so many areas of...

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Substitution Top Trumps

Do you remember playing the Top Trumps card game as a kid? Here are a couple of Top Trumps card game resources that will make any lesson about substitution really fun. Click here for the animal substitution Top Trump cards. Click here for the dinosaur substitution Top Trump cards. These are for higher attaining classes and feature brackets and indices....