I sometimes wonder why we make this so difficult for the average PPL. The fundamentals are that the nearer the stick is to your Crown Jewels the nearer you are to a stall. If you have a significant angle of bank and are trying to turn the stick will be in that position.
Of course we all recognise the symptoms of slow flight or, more importantly the approach to the stall? Gushing over air speeds, angles of bank, squares of the load factor etc is for people who prefer reading books or designing aircraft.
There are some simple rules of thumb which the average pilot can hang their hat on, one being reduced bank angles in a turn, close to the ground when taking off or landing. Experimenting outside these boundaries is very useful and informative but needs to be done in the right environment.