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实践与自主是数学活动课的精髓,真正让学生“动”起来是上好数学活动课的核心要素。就活动课而言,学生才是活动的主体,而教师只需根据学生的要求给予适当的指导。在活动的过程中,我们应该结合学生的需要和兴趣,尊重学生新颖的思维方式,给他们较多的自由,让他们自主、独立地活动。如:笔者在设计《截一个几何体》这一活动课时,做了一个前期准备,即在上课之前,引导学生准备一些易切割的立方体材料,如萝卜、马铃薯、粘土等。在做立方体的过程
Practice and autonomy are the essence of mathematics activities. It is a core element of good mathematics activities that students are truly “moved”. In terms of activity classes, students are the main body of the activities, and teachers only need to give appropriate guidance according to the students’ requirements. In the course of activities, we should combine students’ needs and interests, respect students’ novel ways of thinking, give them more freedom, and allow them to be independent and independent. For example, when the author designed the “cutting a geometry” activity class, he did a preliminary preparation, that is, before the class, he guided the students to prepare some easily cut cube materials such as radish, potato, and clay. The process of doing the cube