Why accuracy is not always the best measure of progress

When it comes to measuring progress in mathematics, accuracy – or the percentage of questions answered correctly – is the best measure of your child’s progress, right? Not necessarily…

In fact, the main benchmark of progress at Edplus is not accuracy but mastery – long term retention of knowledge. For optimal learning, your child’s accuracy needs to be below 100%. Why is this?

Well, the best way to ensure your child makes progress is not to focus only on the facts that they already know, but to continuously introduce new questions that they currently don’t know. This means questions that they are likely to get wrong the first time.

The Edplus algorithm automatically adjusts its difficulty to ensure that this is so. Each question is dynamically calibrated to your child’s ability to reinforce what they already know (that’s how we achieve mastery) but simutaneously to make sure that they are always taking on board new information. Edplus pushes your child just a little beyond their comfort zone and will keep their accuracy to significantly below 100% (how much depends on the user and the question set).

Think of a learning pipeline, with continuous delivery of questions at different stages of retention in your child’s memory. Total accuracy will be necessarily elusive as there will always be a certain proportion of facts that are new and yet to be learned.

So, while we still measure accuracy, it is not the best measure of your child’s progress with Edplus. The real measure of success – and true consolidation of knowledge – is mastery.