Skip to main content

Image of a top down hierarchy. At the top is the tricky topic. Below and linked to the tricky topic are four boxes labelled stumbling block A, B, C and D. Underneath these stumbling blocks, and linked to them are five boxes labelled Students’ problem example 1 to 5. Each student problem example is linked back up to one or more stumbling blocks. Below each student problem example is a line leading to a box containing the text ‘problem distiller’.