现行的小学数学教材,例题大都以生活主题图的形式呈现。这样一是要引起学生的学习兴趣,二是将数学的思想方法渗透其中,让学生体会到数学和生活的相关性。教学中,教师要通过情境创设,让学生在获取信息中提取知识储备,将已有经验和所学知识进行“对接”。学生通过情境,在学习过程中知其然并知其所以然,真正体验数学,掌握知识。 The current primary school mathematics textbooks, most of the examples are presented in the form of thematic maps of life. One is to arouse students’ interest in learning. The other is to infiltrate the way of thinking of mathematics so that students can understand the correlation between mathematics and life. In teaching, teachers should set up through the situation so that students can extract knowledge from the acquired information and “dock” the existing knowledge and experience. Students through the situation, in the learning process know and understand why they really experience mathematics, master of knowledge.