Mr Tway is amazing because he didn't make it easy. As a GATE kid, he challenged me. Made me think. Made me grow. That's magic. He made us laugh. He had his own style. He made us work. 20 years later, and I still cherish his way.
The best math teacher I ever had. He didn't teach by the book, it's true. He had his own great style that was full of clarity and foundation.
I heard that he was good in his prime, but when I had him he was old and senile. He kinda hurt my foundation as well.