I've taught mathematics and sciences for the past few years and i've obtain good grades for my mathematics subjects.
I scored A2 for both elementary math and additional mathematics for my GCE O LEVEL and A1 for phy&chem for gce o level
I scored A for my H2 mathematics and B for H2 chemistry and obtain the top 25% in my school cohort during my JC.
I would always ensure that my student understand what i'm teaching and will conduct a mini quiz before teaching them so as to find out their level of understanding as well as their weakness. From there, i'll then help them with it. Normally the first few lessons will be on the fundamentals concepts before proceeding to the tougher questions.