Science Nordic – Nancy Bazilchuk 
Mathematics is a subject that is additive: each new learned skill prepares students for the next. But if you are stuck at the first step in the process, you can’t go any further. Somewhere between 15 and 20 per cent of all children and young adults have some kind of difficulty with mathematics. At its extreme, this problem is called dyscalculia. “The sooner we can help students who get lost in the learning process, the sooner we can get them on track again. It’s always our goal to identify students who are struggling as early as possible,” says Anita Lopez-Pedersen, a PhD candidate at the University of Oslo’s Department of Special Education. (more)