[ Insert joke here about Singapore government denying existence of non-conformist gender identity here] I was almost always very good at math, and my approach was usually to try to relate to the problem as an actual thing. Sketching a problem can be quite helpful, as it can give you a handle on it that numbers and equations won’t, at least for some people. So I expect yes, that “Signapore block” system is probably very helpful, though the diagram bothers me a little since it uses one block for every two people.