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建立合理的思维结构,发挥初中学生善于联想的形象思维优势,培养学生运用不同的方法观察思考问题的习惯和勇于探索的良好的心理素质,对于发展学生数学思维的敏捷性、连续性和创造性,将会起到不可低估的推动作用。本文在展示30°角思维方法的同时,努力寻求一种和谐的思维“环境”,让学生在别具一格的思维体操的主旋律中,尽情体验数学所蕴含的内在美。 要求:用圆规和直尺作出30°角的图形。每个“动作”中至少有一个30°角,否则视为“犯规动作”。
Establish a reasonable thinking structure, use the image thinking advantages of junior high school students who are good at association, train students to use different methods to observe the habits of thinking and to explore the good psychological qualities, to develop the agility, continuity and creativity of students’ mathematical thinking, It will play a catalytic role that cannot be underestimated. In this paper, while demonstrating the 30° angle of thinking, we strive to find a harmonious thinking “environment” that allows students to experience the inner beauty contained in mathematics in the main theme of unique thinking gymnastics. Requirements: Use a compass and a ruler to make a 30° angle pattern. There is at least one 30 degree angle in each “action”, otherwise it is regarded as “a foul action.”