适度的“纠一反三”是化学二次作业的好形式,能巧妙把握其“程度与形式”,捕捉好实施的有利时机,提高教学质量,能有效培养学生的逻辑思维能力。%As a good form of chemical secondary operations, modest"rectifying the three" can grasp skillfully the"degree and form" and capture implementation of the favorable opportunity, and will improve the quality of teaching and cultivates effec⁃tively students′logical thinking ability.
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