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小学数学教学可以分为概念教学、运算教学和解决问题策略的教学。其中,概念教学是重要的基础,也是衡量我们教师专业知识的重要标志。但通过听一节课,我觉得我们年轻教师对教材的研读还是不够透彻,对数学概念把握还是不够到位、准确。我们还要花大量的时间来钻研教材,争取在上课前习懂每一个数学概念。教学片断:1.教学例1第1个问题。师:你能用以前学过的知识算出“0.8×3”等于多少吗?生:0.8×3是求3个0.8的和。师指出:0.8×3也可以用竖式计算(板书)。师问:谁能看着竖式,说说用竖式计算“0.8×3”可以怎样想吗?小数点应该怎样点呢?0.8是几位小数?2.4呢?师指出:因数是几位小数,积就是几位小数。2.教学例1第2个问题。出示“冬天买3千克西瓜要多少
Primary school mathematics teaching can be divided into concept teaching, teaching operation and problem solving strategies. Among them, the concept of teaching is an important foundation, but also an important indicator of our teachers' professional knowledge. However, by listening to a class, I think our young teachers' study of the textbooks is still not thorough enough, and it is still not enough to grasp the mathematical concepts in place and accurately. We also spend a lot of time studying textbooks and trying to understand every mathematical concept before class. Teaching pieces: 1. teaching example 1 first question. Teacher: Can you figure out how much ”0.8 × 3“ equals with the knowledge you've learned before? Student: 0.8 × 3 is the sum of 3 0.8. Division pointed out: 0.8 × 3 can also be used vertical calculation (blackboard). Teacher asked: Who can look at the vertical, to talk about the use of vertical calculation ”0.8 × 3 “ how can I think? Decimal point should be how? 0.8 is a few decimals? Decimal, plot is a few decimals. 2. Teaching Example 1 second question. Show ”winter buy 3 kg watermelon how much