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The issue of schema rises in geography. How are schema built and rebuilt? Quite often, when students come to us they will have an image of the … world might look a bit like this. It’s probably based on the famous Mercator Projection of the world. The only problem with this is that the Mercator Projection is actually incorrect because it shows lots of countries in the world as being much bigger, relative to others than they actually are.

If we convert the countries to their true size we get a whole other image, which is a much fairer representation of each countrys’ area. Greenland, for example in the northern part of the map just here is actually in real life much much smaller than India. But on the Mercator Projection, is made to look larger. This is because the world is round and we’re trying to convert a spherical space onto a flat surface and there are going to be all kinds of distortions that occur, so it’s important we try and help students to correct their earlier schema, so that they realise that this is the case.
Let’s look at some of the reasons why schema and Cognitive Load Theory can be useful:
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