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我有幸听了一位名师执教了《认识整万数》一课。此中对整万数的读写的指点这一关键,引发听课了老师的热议。老师出示问题,规定学生先自力探究,然后构造交换。师:首先写甚么,然后写甚么,学生有甚么小窍门吗?生1:从最高位写起。生2:首先写有算珠的数位,再把没有算珠的数位用0表示出来。师:先写有算珠的数位?好比第一个数,你是首先写什么的?生2:先在万位上写6,然后写4个0。师:60000为什么要写四个0呢?生:由于个级上没有算珠,以是要写4个0。师:师:那第二题有几多个万,我们应首先写几多,再写甚么?
I was fortunate enough to hear a famous teacher coached the “Know All Thousands” lesson. Among them, the key to reading and writing the whole number of tens of thousands of people has triggered a heated discussion among teachers. The teacher showed the problem, requiring students to explore themselves and then to construct exchange. Teacher: What to write first, and then write what, what are the tips for students? Health 1: Write from the highest. Students 2: first written count the number of beads, and then count the number of beads did not count out with 0. Teacher: First, write the number of the abacus? Like the first number, what did you first write? Health 2: Write 6 in the first place and then 4 0. Teacher: 60000 Why write four 0? Health: Because there is no count beads at the level, so to write 4 0. Teacher: Teacher: That how many thousands of second question, we should first write how much, write what?