动手操作,是发展学生思维、培养学生数学能力最有效的途径之一。新编小学数学教材的特点之一,是重视直观教学,增加了学生的实践活动和动手操作内容。为此,操作活动成了课堂教学过程中的一个重要环节,优化操作活动,有利于发展学生的思维,培养学生的能力。 Hands-on operation is one of the most effective ways to develop students ’thinking and students’ math ability. One of the characteristics of the new primary school mathematics textbooks is to attach importance to visual teaching and increase students’ practical activities and hands-on content. To this end, the operation has become an important part of the classroom teaching process, optimizing operational activities, is conducive to the development of students ’thinking, develop students’ abilities.