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本节教学内容为求比一个数多几的数的应用题(教材第90～92页),第1课时,新授课。 这部分内容是在学生学习并掌握了总数与部分数的基本关系应用题的基础上,进一步学习关于两数相差关系的应用题。这类应用题一直是小学数学教学中的难点。虽然教材所采取的教学策略一再改变,但目的要求仍是让学生掌握基本的数量关系,这是今后学习的基础。这类基本数量关系的核心是研究较大
The teaching content of this section is the number of applications than the number one question (textbook 90 ~ 92), the first class, the new lectures. This part is based on the students to learn and master the basic relationship between the total number and the number of parts on the basis of the application to further learn about the difference between the two numbers of application questions. This kind of problem has always been a difficult point in elementary mathematics teaching. Although the teaching strategies taken by the teaching materials have changed repeatedly, the aim is still to let students master the basic quantitative relationship, which is the basis for future study. The core of such a basic quantitative relationship is to study the larger