论文部分内容阅读
多位数的读法是教学中的重点。而中问有0的多位数,由于0的个数和位置的不同,引起读法的变化,再加上读数与写数的法则也不尽相同,这样中间有0的多位数的读法又是教学中的难点。如何按知识发展的规律,引导学生去发现掌握新知识呢?我采取以旧引新,分层深入的方法设计课堂内容,具体安排如下: 一、以旧引新。教学时,先检查复习万以内中间有0的数的读法及其法则,由于位数的局限,万以内的数中间有一个或二个0的都只读一个0。如206、2068等,复习时让学生说出2008中间连续有二个0读作几个。2060的哪个0读,哪个0不读。在此基础上出现多位数中间有0的数,这样既复习了旧知识,又为新课做好准备。
Multi-digit reading is the focus of teaching. And asked in the multi-digit 0, 0 due to the number and location of different, causing changes in reading law, coupled with the law of reading and writing are not the same, so there are 0 multi-digit reading Law is difficult in teaching. How to guide students to discover and master new knowledge according to the law of knowledge development? I adopt the old introduction of new and in-depth method to design the classroom contents as follows: Teaching, first check the number of readers within the middle of reading 0 and the law of its number, due to the limitations of the median, within the number of one or two 0 are read only one 0. Such as 206,2068 and so on, let the students say when reviewing that there are two consecutive 0s in 2008 as a few. Which read 060, which 0 is not read. Based on this, there are 0s in the middle of the multi-digit, so that both the old knowledge and the new class are prepared.