Dyscalculia: News from the web:

Teaching is a two way street. You can be the best teacher ever but if your brilliant messages are not understood by your audience, you will not get the results you were aiming for.

simply asking ‘have you understood?’ This tells us almost nothing – as students rarely so no or could be wrong in saying yes. But, most importantly, there are always degrees of understanding. Instead of asking if, we should ask what student have understood. Rosenshine gives us a nice list of ways teachers can check for understanding.:

Read all about it: HERE