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图表习题是常用的一种练习方式,也是练习的重要组成部分。为此,笔者在实践中对这类题的教学做了些尝试,取得较好的效果。一、运用图表习题渗透教学思想图表习题形式多样,直觉性强。教学中可运用图表习题,渗透有关教学思想,加深学生对所学知识的理解。从10以内的数的认识开始,学生就已接触到一些封闭的曲线圈,圈内是一些学生所熟悉的具有某种特征的形或数。如要指导学生认真观察,加深对所学知识的整体印象,了解集合的整体思想,通常也有这类图肜的习题。如练习时,要求学生说出每一次的积是由哪两个数相乘得到的,在说理中渗透对应思想。有时,数与数之间的对应关系还可以通过列表的方式加以体现。如表:
Chart exercises are a commonly used practice, but also an important part of practice. For this reason, the author made some attempts in the teaching of such questions in practice, and achieved good results. First, the use of chart exercises Penetrating teaching ideas Chart exercises in various forms, intuitive and strong. Teaching exercises can be charting, infiltration of teaching ideas, to deepen the students understand the knowledge. From the understanding of the number within 10, students have come into contact with some closed curve circle, the circle is some of the students are familiar with a certain shape or number of features. If you want to guide students to observe carefully, to deepen the overall impression of knowledge learned, to understand the overall idea of the collection, usually there is such a problem map Tuo. Such as practice, ask students to say every time the product is multiplied by which two numbers get, in the theory of infiltration of the corresponding ideas. Sometimes, the correspondence between numbers and numbers can also be reflected in the way of a list. As table: