作业不仅是巩固基础知识,并把基础知识转化为基本技能的手段,而且是培养思维能力、发展智力的重要途径。所以,每个教师都应当把布置和指导学生作业这一环抓紧抓好。 在教学过程中,布置一定数量的作业,让学生动脑想,动口讲,动手练,是完全必要的。而且为了让学生正确理解概念,熟练地掌握基本功,还要适当地多练,反复练。比如为了让学生弄清一些与长方体有关的概念,不仅要让学生练习长方体底面周长、底面积的 Homework is not only a means of consolidating the basic knowledge and transforming the basic knowledge into basic skills, but also an important way of cultivating the thinking ability and developing the intelligence. Therefore, every teacher should pay close attention to the arrangement and guidance of homework. During the teaching process, it is absolutely necessary to arrange a certain number of assignments so that the students can think and act as their own mothers. And in order to allow students to correctly understand the concept of proficiency in basic skills, but also appropriate to practice more, repeated practice. For example, in order to make students understand some of the concepts related to the cuboid, not only to allow students to practice the circumference of the bottom surface of the cuboid, the bottom area