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在江西省第九届小学数学优质课比赛中,一节“多位数乘一位数”的课引发了听课教师的共鸣,课堂上教师对学生的评价,学生与学生的评价以及学生的自我评价让课堂充满活力,知识也在评价中习得。现撷取几个教学片段与大家共赏。片段一在对话评价中理解师:那灰袋鼠的跳高高度是多少呢?你也能尝试用笔算的方法算一算吗?(生尝试用笔算的方法计算)师:老师收集了几种算法,我们来看看他们的得数,你能一眼就看出哪种算法一定是错的吗?
In the ninth primary school mathematics and quality class competition in Jiangxi Province, the section “Multi-digit by one digit” led to the resonance of the lecturer, the evaluation of the students in the class, the evaluation of students and students, and the students The self-evaluation makes the classroom full of vitality, knowledge is also evaluated in the acquisition. Now pick up a few tutorials to share with everyone. Fragment one in the dialogue evaluation to understand the division: that gray kangaroo height of the jump is how much? You can also try to calculate the pen calculation method? (Students try to use pen calculation method) Teacher: The teacher collected several algorithms, Let’s take a look at their numbers. You can see at a glance which algorithm must be wrong?