在小学期间,小学生的思维正处于由形象思维向逻辑抽象思维过渡的阶段,小学数学的教学也有必要在抽象的数学知识和学生的形象性思维中架起一座连接的桥梁——学具。教师对学生进行学具操作的引导,有助于培养学生对数学知识强烈的感知能力与探索,学生通过支配感官系统地参与进学习中去,有效调动自身学习的积极性和学习兴趣。因此,教师引导学生对学具的操作和掌 During primary school, primary school students ’thinking is in the stage of transition from image thinking to logical abstract thinking. It is also necessary for elementary school mathematics teaching to set up a connecting bridge between abstract mathematical knowledge and students’ imaginal thinking. Teachers’ guidance of students’ operation of learning tools helps to cultivate students’ strong perception and exploration of mathematical knowledge. By participating in learning systematically, students can effectively mobilize their enthusiasm for learning and their interest in learning. Therefore, teachers guide students to learn how to operate and control