important and difficult points of teaching
教学的重点和难点
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The article talks about how to design questions at the beginning and ending of teaching. on the important and difficult points of teaching material, to stimulate the pupils' thoughts.
文章论述了如何在授课起始时设疑提问、在教材重、难点处设疑、在教学的尾声中设疑等问题，从而来激活学生思维。
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