【教学内容】苏教版五年级上册99-100页第八单元例1、例2、例3和练一练【教材简析】本节课主要是安排学生学习怎样用字母表示数,在这之前,学生已经学习过用字母表示计算公式、运算定律、数量关系等,已经有了一定的学习基础。本节课的学习,有助于学生对学习过的知识进行巩固和加深理解,同时也是学生的思维从具体到抽象、从个别到一般的一次飞跃。通过本节课的学习,学生能更加概括地理解这些知识,也能更加概括地表达这些知识,从而更 Teaching content】 【Soviet version of the fifth grade on the 99-100 page eighth unit example 1, Example 2, Example 3 and practicing a practice [textbook analysis] This lesson is mainly arranged for students to learn how to use the number of letters in this Previously, students had learned to use letters to indicate the formula, the law of the law, the number of relations, etc., already have a certain learning base. The study of this lesson helps students to consolidate and deepen their understanding of the knowledge they have learned. It is also a leap from individual to general to students’ thinking. Through the study of this lesson, students are able to understand this knowledge more broadly, as well as convey it more generally