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我听了三节复习课,看见老师都在做这三件事

  • 2026-10-09 02:11:11
我听了三节复习课,看见老师都在做这三件事

月考复习课,最不该做的三件事

上周连着听了三节复习课。三位老师都很用力,课件做得密密麻麻,一节课塞进整整一个单元,讲得满头汗。下课铃响的时候,我在本子上给自己留了一个问题:这三节课里,学生收获最大的是哪几分钟?

我发现我答不上来。因为四十分钟里,几乎全是我一个人在说。

复习课有个天然的假象:这些内容我都讲过了。

讲过这一事实,让老师默认「再过一遍」,也让学生默认「我听过了」。于是最有事干的是讲的那个人,最没事干的是听的那一屋子人。

真正的问题是这三种上法:一刀切——会的和不会的听同样的内容;老师替学生想完了——归纳、找错、划重点全由老师完成;没有第二次动笔的机会——听完觉得懂了,下次照样错。

一、把新课从头到尾再讲一遍

最常见的一种上法,是把这个单元重讲一遍,只是讲得快一点。听起来最稳妥,实际最浪费。

因为第一遍没听懂的人,不会因为你讲第二遍就听懂——你用的是同一个讲法、同一个顺序、同一批例题。而第一遍就懂的人,陪坐四十分钟。

怎么判断自己是不是在这么上?看这一节课里,学生有几分钟是在自己翻书、动笔、开口。如果答案接近于零,那就不是复习课,是一次重播。

替下来的动作只有一步:先问后讲。上课给五分钟,让每个人在纸上写下「这一单元我最没把握的三个地方」,不用写名字,收上来,照着纸上的东西讲——从「我要讲什么」变成「他们不会什么」。

二、整套卷子从头讲到尾

第二种,是做题、讲题一条龙,一道不落。它的毛病藏在时间分配里:四十分钟平均分给二十道题,等于在告诉学生每一道题都一样重要。

更隐蔽的一层是:讲卷子的时候,是老师在说正确答案,学生没有第二次做这道题的机会。听懂和会做,中间隔着一次自己动笔。

判据就是这一句:看一节课里有没有哪怕五分钟,是学生重新拿起笔做那道题。只听不作,等于没订正。

替下来的动作也很便宜:讲之前先排个序。让学生举手或者用一张纸条报「哪道题错了」,两分钟就能排出错得最多的三道,课上只讲这三道;其余的当堂同桌互讲,错题当场重做一遍。

三、只讲答案,不讲错在哪一步

第三种最不容易被发现,因为它看上去最「讲完了」:题讲了,答案给了,订正收上来了,错题本还厚了几页。

但订正如果停在「答案是 B」这一步,学生记住的是答案,不是自己掉进去的那个坑。换个数字、换个问法,他照样掉进去。错题本越记越厚、分数一动不动,多半卡在这里。

判据是这句:让学生把「我当时是怎么想的」说出来,哪怕只写一行。说不出来的,说明他只是记住了正确答案。

替下来的是一个固定问法,讲错题时问三句:这一题你当时是怎么想的?从哪一步开始不对?下次遇到同类题,你先看什么?三句里第三句最值钱——因为它是下一次的动作,不是这一次的解释。

不该这么做
为什么没用
改成什么
重讲一遍
同一个讲法讲第二遍,不懂的还是不懂
先收「最没把握的三个地方」,照着讲
整套卷子讲到底
四十分钟平分给二十道题,等于没有重点
先按错的人数排序,只讲错得最多的三道
只讲答案
记住的是答案,不是自己错在哪一步
三问:怎么想的/从哪步错的/下次先看什么

这三件事我自己全都干过。尤其是第一种——备课来不及的时候,把旧课件调出来从头放一遍,最省事,讲完一身汗,看着还挺投入。后来我去数学生桌上的草稿纸:一节课下来,纸是空的。

下一节复习课,只做一个动作

上课先给五分钟,让全班在纸上写下「这一单元我最没把握的三个地方」,不写名字,收上来。先看完这叠纸,再决定这节课讲什么。这件事不需要备课,只需要你肯先看一眼学生写的东西。

复习课不是把知识再讲一遍,

是把学生不会的地方找出来。

复习课你最常采用哪一种上法?

A从头讲到尾:把单元再过一遍
B做题+讲评:整套卷子讲下来
C先收问题:照学生写的讲
D放手整理:让他们自己归纳

老师讲得越完整,学生越没事干。

—— 初始化工作室·陈老师 · 2026 年 10 月

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  6. SELECT * FROM `set` [ RunTime:0.000280s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000674s ]
  8. SELECT * FROM `article` WHERE `id` = 521077 LIMIT 1 [ RunTime:0.000346s ]
  9. UPDATE `article` SET `lasttime` = 1791496350 WHERE `id` = 521077 [ RunTime:0.001580s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000327s ]
  11. SELECT * FROM `article` WHERE `id` < 521077 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000427s ]
  12. SELECT * FROM `article` WHERE `id` > 521077 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000365s ]
  13. SELECT * FROM `article` WHERE `id` < 521077 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000589s ]
  14. SELECT * FROM `article` WHERE `id` < 521077 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000651s ]
  15. SELECT * FROM `article` WHERE `id` < 521077 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000638s ]
0.105728s