面对不同程度、不同阶段的学习者，教育者须把握一定的文化教学原则，运用具体的方法，采取相应的策略。
Faced with learners at different levels and different stages, educationists must hold certain cultural teaching principles, employ concrete methods and adopt corresponding tactics.
论文的第四部分对研究性学习的实施做了研究，主要包括数学研究性学习的课题设计原则、内容分类、教学策略。
Second, the paper make a study about the implement of mathematics research study including the design principle of researching problem , content classification, teaching strategy.
论文的第四部分对研究性学习的实施做了研究，主要包括数学研究性学习的课题设计原则、内容分类、教学策略。
Second, the paper make a study about the implement of mathematics research study including the design principle of researching problem , content classification, teaching strategy.
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