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角的度量是在学生初步认识了角和直角,并明确了角的概念,知道了角是有大小之分的基础上学习的知识,相关知识为后续学习角的分类和画角打下基础。通过观察、操作、学习活动,概括总结量角的基本步骤,形成度量角的能力,同时经历和体验知识的形成过程。在自主探究、合作交流的过程中,培养学生的交流能力,培养学生用数学的眼光观察周围的事物的习惯和学习数学的兴趣。
The measure of angle is the initial understanding of the angle and the right angle of the students, and the concept of the angle is known. The knowledge of the angle is based on the size of the learning, and the related knowledge lays the foundation for the classification and drawing angle of the following learning angle. Through the observation, operation and learning activities, the basic steps of measuring the angle of the angle are summed up, the ability of forming the angle of measurement is formed, and the process of forming and experiencing the knowledge is experienced at the same time. In the process of independent inquiry and cooperation and exchange, we should cultivate students ’ability of communication, cultivate students’ mathematic knowledge of the habits of the surroundings and their interest in learning mathematics.