certificate in teaching singapore

There is a time and my cousin went out to eat heard my cousin said their children recently progress but not small, then heard my cousin say that I also greatly surprised about it, because every time when together together, always can hear him complain not to like the child to improve performance then, suddenly heard him say that I was surprised, but later I found I did not know the original is because he gave the child for the certificate in teaching Singapore, since the children reported that certificate in teaching Singapore he scores will improve it so high, I heard him say that didn’t believe his children don’t progress really, but because I often hear people say Certificate in teaching Singapore very good.