在同底数幂的乘法部分,以前通常采用这种教学方法,一上课,出几个小题,如①3~4=(),②3~4×3~5=3(),③a~4×a~5=a(),④a~m×a~n=a(),通过一系列练习题的引导,学生逐渐理解了公式.随着课改的不断深入,本着“学生自己能学会的,教师不教”这一原则,对这一节进行了重新设计,把原本由教师引出公式变为让学生创造公式,教师退居幕后,让学生自己搭台唱戏.下面是本节课的教学实录,简略写出来,供同行 In the multiplication part of the same power at the end of the past, usually using this teaching method, a class, a few small problems, such as ① 3 ~ 4 = (), ② 3 ~ 4 × 3 ~ 5 = 3 (), ③ a ~ 4 × a Through a series of practice questions, students gradually understand the formula.With the deepening of the curriculum reform, based on “students can learn by themselves , Teachers do not teach ”this principle, this section has been redesigned, the original lead by the teacher into a formula for students to create formulas, teachers retreat behind the scenes, let students put on stage singing. Here is the lesson Teaching Record, briefly written for colleagues