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教学内容:小学数学九年制义务教材第10册。教学目标:1.使学生理解圆的周长和圆周率的意义,理解和掌握圆周长的计算公式,并能运用公式正确计算圆的周长
Teaching content: elementary mathematics nine-year compulsory textbook tenth book. Teaching Objectives: 1. To enable students to understand the significance of the circumference and the circumference of the circle, to understand and grasp the calculation formula of the circumference, and to use the formula to correctly calculate the circumference of the circle