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一、分析教材,明确教学要求 100以内数的读法和写法,是在第一册认识20以内数的基础上,把数的范围从20扩展到100。通过教学,要使学生对数的含义有清楚的认识,初步理解数的概念,学会100以内数的读法和写法,一般来说,大多数学生能数出100以内的数,部分还能写出100以内的数。但是,他们对100以内的数的意义仍然不清楚。另外,义务教材加强了直观演示和学生实际操作,这有利于发展学生的思维能力,有利于教师提高教学效益。
First, the analysis of teaching materials, a clear teaching requirements of reading and writing within the number of 100 is based on the first volume of knowledge within 20 or less, based on the number of the range from 20 to 100. Through teaching, students should have a clear understanding of the meaning of logarithm, a preliminary understanding of the concept of number, learn to read and write the number of less than 100, in general, most students can count out the number of 100, some can write Out of 100 numbers. However, their significance to numbers within 100 is still not clear. In addition, the compulsory teaching materials strengthen the visual demonstration and students' practical operation, which is beneficial to the development of students' thinking ability and teachers' teaching benefit.