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所谓数学活动经验,就是在教学目标的指引下,通过对具体事物进行实际操作、考察和思考,从感性向理性飞跃所形成的认识,数学活动经验的积累过程是学生主动探索的过程。也就是说,活动经验是在学生的数学实践中随着思维过程而不断积累的。在“图形与几何”领域中,动手实践是应用最广泛的一种学习方式。本文以“圆的周长”教学为例,对如何引导学生在有效操作中积累数学活动经验展开探讨。
The so-called experience of mathematical activity, is under the guidance of teaching objectives, through the actual operation of the specific things, study and thinking, from sensibility to rational leap formed by the understanding of the accumulation of mathematical activity experience is the process of student exploration. In other words, the activity experience accumulates with the thinking process in the students’ mathematical practice. In the field of “Graphics and Geometry,” hands-on practice is one of the most widely used learning styles. This paper takes “Circumference of Circumference” teaching as an example to discuss how to guide students to accumulate experience of mathematics in effective operation.