《圆的周长》说课稿(国外英文资料).docVIP

《圆的周长》说课稿(国外英文资料) Own collection The error can hardly be avoided For reference exchange If there is an error Please! Thanks The perimeter of a circle releases Liyang Yonghe primary school Ma Zhongmei A textbook, said The perimeter of a circle from PEP six year primary school mathematics eleventh volume circle in section second The perimeter of a circle concept of teaching Is a rectangular, square perimeter knowledge as the cognitive basis A previous study is to deepen the round understanding Is the basis behind the learning circle area knowledge Therefore, it plays an important role in Is an important content of preliminary knowledge of geometry teaching in primary school According to the primary school mathematics teaching syllabus and textbook writing intention This section establishes the teaching objectives: 1. To enable students to understand the perimeter of a circle To understand the meaning and remember the approximate value of PI To understand and master the calculation formula of the circumference of a circle The perimeter can correctly calculate the circle The training and development of students concept of space Abstract generalization and solve actual problem ability 3 the ancient mathematician Zu Chongzhi of Pi of deeds Patriotism education to students Teaching emphasis: understanding and grasp the calculation formula of the perimeter of a circle Teaching difficulties: understanding of PI Two, teaching and learning According to the understanding of the law of teaching contents and students characteristics I take the Geometers Sketchpad demonstration method to enable students to understand the perimeter of a circle Penetration into thinking To guide students to understand the PI using experimental method And deduced the circumference calculation Train operation skills of students To improve the students ability of analysis, comparison, generalization, reasoning Finally, using the tutorial To improve the level of self learning Cultivate the ability to sa