圆的周长(国外英文资料).docVIP

圆的周长(国外英文资料) I carefully collated documents, documents from the network I only collect and sort out In case of error Please check it yourself! Circumference Foshan nine small square army into Content of courses People teach the experimental version of the sixth grade sixty-second on page 63 of the circumference of a circle Teaching target Design Basic goal 1. Let the students know what the circumference of the circle is 2, by measuring Understand and grasp the meaning and the approximate value of PI 3. Understand and grasp the perimeter formula of circle The circumference of a circle can be correctly calculated 4, through the understanding of Zu Chongzhi Infiltration mathematics culture education Developmental goal 1, through the process of understanding. Let students go through the discovery of scientific inquiry Make a guess The process of experimental analysis 2, inquiry learning based on new basic education Try to teach mathematics - teach wisdom Pay attention to the development of students Try the teaching strategy of three steps and two stages in three sets and two courses Goal making Basis Student status analysis Students already have the knowledge that students have studied the perimeter of a rectangle and a square And have a certain understanding of the circle Know the relation between radius and diameter But for the ratio has not yet learned to make prompt In addition, the calculation of measurement results may not be accurate (to assign students with calculators) Textbook analysis Study the unique development value of this unit for students Attaching importance to the structuring of knowledge points This knowledge of the circumference of the circle is a further study of the circle after a preliminary understanding of the circle The textbook begins with the meaning of girth Enable students to understand the meaning of the circumference of a circle on the basis of their previous knowledge By using a ruler to measure the amount of the rolling method, the amo