teaching to varing degrees

• 分层教学

teaching to varing degrees的用法和样例：

例句

1. Teaching with layers headstream is in China.
   分层教学的源头在中国。
2. Stratify teaching to be one to plant in lower individual-rization collective teaching form teaching tactics.
   分层教学是一种在集体教学形式下的个别化教学策略。