人教版第七册第七单元“数学广角”共设计了四个例题,例一是烙饼时怎样安排操作最节省时间。学习时,同学们在小组内根据情境图和题目所提供的条件、问题进行了热烈的讨论。有的同学用橡皮,还有的同学用纸片并写上正反面代替要烙的饼,进行演示讨论。每个小组都讨论得热火朝天,同学们都争相发表自己的观点,平时不善于发言的学生也不甘落后最终同学们探究出了最佳方案 PEP 7 seventh unit “Mathematical Wide Angle ” designed a total of four cases, for example, the first is how to arrange the operation when the pancake most saves time. During the study, the students engaged in heated discussion in the group based on the situation and the conditions provided by the situation map and the topic. Some students use rubber, and some students with paper and write the positive and negative instead of to be branded cake, to demonstrate the discussion. Each group was discussed in full swing, students are vying to make their own point of view, usually not good at speaking students are not far behind Finally, students explore the best solution