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《义务教育数学课程标准(2011年版)》在“实施建议”中指出:“数学活动经验的积累是提高学生数学素养的重要标志。帮助学生积累数学活动经验是数学教学的重要目标,是学生不断经历、体验各种数学活动过程的结果。数学活动经验需要在”做“的过程和”思考“的过程中积淀,是在数学学习活动过程中逐步积累的”。“圆的认识”这一教学内容,是学生较深入地学习曲线图形的开始。由学习直线图形扩展到学习曲线图形,是学生空间观念发展中的一次
“Compulsory Education Mathematics Curriculum Standard (2011 Edition)” in the “Implementation Suggestions ” pointed out: “The accumulation of experience in mathematical activity is an important symbol to improve students ’mathematical literacy. To help students accumulate experience in mathematical activities is an important goal of mathematics teaching, Is the result of students’ continuous experience and experiences of various maths activities.The experiences of maths activity need to accumulate in the process of ”doing“ and ”thinking“, and accumulating in the process of maths learning. ”Circle of knowledge " This teaching content, is the students begin to study curve graph deeper. Expanding from learning a straight line graph to a learning curve graphic is a development in student space concepts