Are you ready to ruuuuummmmmble? MIT is offering a course in “Street-Fighting Mathematics” and the course materials are all online, ready for you to rock out in some TapouT and throw down some dimensional analysis in this bitch.
This course teaches the art of guessing results and solving problems without doing a proof or an exact calculation. Techniques include extreme-cases reasoning, dimensional analysis, successive approximation, discretization, generalization, and pictorial analysis. Applications include mental calculation, solid geometry, musical intervals, logarithms, integration, infinite series, solitaire, and differential equations. (No epsilons or deltas are harmed by taking this course.)