## Proof of rectangle areas on square grid using surds

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Sharing great ideas and resources with maths teachers

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I have become increasingly interested in visual models recently as a way of introducing topics. Visual models have the power to illustrate concepts in their rawest, simplest form without the misleading associations that words and abstract notation can introduce. I’m convinced concrete/visual model introductions should form an increased part of my practice, but the question that interests me is which visual models...

How many times have you been asked “what’s the point of algebra?”? I feel like I have never had a good answer to this question that is relavent to the kids and their lives. Let’s find out what Great Maths Teaching Ideas’ readers think! Do you have a good answer to this question that will satisfy the kids? If so,...

A matching pairs activity for those ‘expand and simplify’ questions… Click here to download

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...

Ever been teaching collecting like terms (simplifying) and just needed 20 questions you could put up on your interactive white board to set the pupils off on? Looking for the questions to be differentiated according to ability and for the answers to be on the next slide? If so, check out this pdf slideshow! Instead of a list of questions,...

There are some really great blogs out there written by maths teachers who really care about their practice. I enjoy reading their posts as they share their insight and ideas and think about how it could improve my own teaching. There is wheat and there is chaff out there. To save you time in separating the two, I have compiled...

Here’s are really good way of introducing algebra and getting across the idea of what a variable is. The pdf slides that you can use on the interactive white board to run this activity are here. Start by getting the pupils to draw this diagram in their books: They then choose a number between 1 and 10 and write this...

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....