Formulae need to be made "Student-Friendly" to remember them better.
For scientific formulae, I substitute images for symbols. For example, 2Pi translates into two berry pies (Try resonant frequency: One over Two Pie Root FL - we start with Venus Williams slamming two pies over the tennis net, before tripping over a root. From the F and L one could make up an expletive...) Sigma turns into a Sikh with a turban on his head, and so on - makes learning a lot of fun; the more ridiculous, the better.
Alex, I hadn't even thought of flowcharts as primitive mindmaps, but I learn a lot from your posts (as well as the others, of course!) - one could add colour and cartoons to spice it up a bit...
