Hello gan and ganwati.
I need your opinion about student ability. We believe that, in learning students have different type such as, low ability, middle ability and high ability. Nah, please share those things, and what makes that types happen.
example : low ability = slowly in thinking and doing something, less practice or there's something wrong in their brain that makes they can;t accept the lesson well.

I appreciated all the comments and thank you very much