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一、背景介绍现今的初中数学课堂,教师在问题情境的新颖、教学形式的多样、合作学习的热闹等形式中,更多地关注到课堂教学的有效性,如何在有限的45分钟里获得高效,前沿的教师把眼光投向本色课堂,追求教学教学的简约、有效,"在教学中尽量排除一些形式的、没必要的、闲散的环节,最大限度地追求课堂教学的最优化。笔者有幸在本校的数学备课组活动中,经历了一位老师上一节大市公开课《5.2平面直角坐标系(1)》的备课历程,在不断改进反思中,最终使得课堂深入浅出,自然朴实,注重实质,淡化形式,既精雕细刻,也浑然天成。以下就一个片段做一些阐述和思考。二、案例呈现与分析1.初备片段师:现在我们来做一个游戏,游戏的规则是:规定教室进门的第一组为第一列,然后依次为第二列……第七列,从前到后为第一行、第二行……第七行,请大家思考自己在教室里所处的位置,
I. Background Introduction In today’s junior high school mathematics classroom, teachers are more concerned about the effectiveness of classroom teaching in the novelty of problem situations, the diversity of teaching methods, and the excitement of cooperative learning. How to obtain high efficiency in a limited 45 minutes The front-line teachers put their eyes on the true color of the classroom, pursue the simplicity and effectiveness of teaching and learning, and “eliminate some forms of unnecessary, idle links in teaching to maximize the pursuit of the optimization of classroom teaching. The author has the honor to In the mathematics lesson preparation group activities of our school, we experienced the preparation course of the 5.2 Plane Cartesian Coordinate System (1), an open class of a teacher in the previous section. In the course of continuous improvement of reflections, the teacher eventually made the in-depth explanation of the classroom simple, natural and simple, and focused on the substance. ,Fade the form, not only carved, but also totally natural.The following is a fragment to do some elaboration and thinking.Second, case presentation and analysis 1. Initial preparation fragment division: Now we come to make a game, the game rules are: The first group of classroom entrances is the first column, followed by the second column...the seventh column, from front to back is the first row, the second row...the seventh row, please think about yourself In which the position of the chamber,