Is Yang Guang, a math teacher in Tianjin No.20 Middle School, a high school student?

All right.

1. Director Yang Guang, a math teacher in Tianjin No.20 Middle School, respects students' personality and self-esteem and understands students like friends.

2. Yang Guang is the chief teacher of regional discipline. He treats students patiently and seriously, so that every student can feel the warmth of home.

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