After I recovered the details I needed, I wondered to see what the tuition was. This means we are in a period where it is a good idea to stop doing what we are doing and reconsider our life method. And the result is - his grade before the tuition is 51% while in Main 3 and in in 2015's last year exams (i.e. in Secondary 3), her son's Mathematics result is 59.5%.