设计尝试活动,要以教学大纲为依据,从教材实际出发,从学生实际出发.尝试点的选择,尝试问题的提法是至关重要的,切忌起点太高,难度太大,否则会变成盲目尝试,将影响学生的学习情绪;也要防问题提得太容易,学生脱口而出就能讲出结论,学生思维量不够,起不到深究尝试启发学生思维运动 Designing and trying activities should be based on the syllabus. Starting from the actual teaching materials, starting from the student’s actual situation, and trying to choose, it is very important to try the question. It is very important not to start at too high a level, too difficult to do so, otherwise it will become Blind trials will affect students’ learning emotions; they also need to prevent problems from being too easy. Students can blurt out their conclusions, and the students’ thinking is not enough.