I firstly give one demo lesson to each student (no charge) for this so student get the some idea how shall I tech them, however after giving demo my 100% of student is ready for taking lessons from me.
As well as I arrange weekly test, daily test for student so they and I get the idea about which topic I need to keen emphasis on them (for example if student is very poor understanding in any topic so I teach this topic with very good and real life example so they can easily absorb what is topic about it).

My fees rate is very marginal.