My special mathematics teacher-Mr Rei

When I met Mr Rei at for the first time, I was had just enrolled by in the high school. He seemed much older than any mathematics teacher who used to ever taught me, so at the beginning/first, I doubted if whether he was qualified for teaching. Besides that, I heard about he had obtained the recruitment commenced here/been employed as a physics teacher <em>(physics needs advanced mathematics, you know!)</em>, but several years later he had learned studied mathematics by himself. I wondered why the principal let this physics teacher teach us mathematics lessons, unless he wanted all of us to failed in our exams. I soon found, however, that I was wrong. <em> (Wrong in two points at least - age should be a plus, and physics too!)</em>

To be continued......