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万以内数的写法是在学习了数数、万以内数的组成和三位数的读写的基础上教学的。因此,本节课的教学目标是进一步学习万以内数的写法,掌握中间、末尾有0的数的写数方法;培养学生归纳、概括以及知识的迁移能力。教学重点是学会写万以内数的基本方法,难点是中间或末尾有零的万以内数的写法。为了突破难点,达到教学目的,我注重利用旧知和知识的迁移类推,再结合计数器,形象地教学,使学生掌握本节课的知识。现对本节课反思如下:
The number of words written in thousands is taught on the basis of studying the composition of numbers, tens of thousands, and reading and writing of three digits. Therefore, the teaching goal of this lesson is to further learn how to write within one million records, and to write the number-zero method with zero numbers in the middle and the end. Students should be trained in induction, summarization and knowledge transfer. The emphasis of teaching is to learn the basic method of writing tens of thousands of records. The difficulty is that there are zero or more words in the middle or at the end. In order to break through the difficulties and achieve the teaching purpose, I pay attention to the use of old knowledge and knowledge of the migration analogy, combined with the counter, the image of teaching, so that students master the knowledge of this lesson. Now reflect on this lesson as follows: