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为了提高课堂40分钟的效益,做到低耗高效,我校开展了小学数学课堂教学有效性的教学研究活动,其中求平均数一堂课引起了我的思考。情景一:三年级第一小组男、女生进行套圈比赛,每人套15个圈,下面的统计图表示他们套中的个数。多媒体出示:统计图男生李小刚(6个),女生吴燕(10个)
In order to improve the effectiveness of 40 minutes in the classroom and to achieve low consumption and high efficiency, our school conducted a teaching and research activity on the effectiveness of primary school mathematics classroom teaching, in which averaging a class aroused my thinking. Scenario 1: The third group of the first group of men and girls to ring competition, each set of 15 laps, the following chart shows the number of their sets. Multimedia Show: Statistics boys Li Xiaogang (6), girls Wu Yan (10)