备课是上课的关键。俗话说：“功夫花在备课上，本事显在课堂上。”我们备课组在各课时，总要做到“十问”自己。一问教学目的是什么。这是备课中的首要问题。教学目的不明确，无的放矢，可想而知，教学效果是不可能好的。二间重点难点是什么。如果重点难点不明确，教学中主决? Preparing for class is the key to class. As the saying goes: “Kung fu spends time preparing lessons and the ability is in the classroom.” In the preparation lesson group, we always have to “truly ask” ourselves. Ask what is the purpose of teaching. This is the primary issue in lesson preparation. The purpose of the teaching is not clear and it is untargetable. It can be imagined that the teaching effect cannot be good. What are the two key difficulties? If the key point is not clear, the main decision in teaching?