故事一:没法儿判的作业!在设计《分数的初步认识》一课前,我看到了张奠宙教授在《小学教学》杂志上发表的《一些小学数学内容的商榷与讨论》一文。其中,对于“分数”这一内容提出了一些“美中不足”的问题——在图1中,你看到了哪些分数?根据当时的调查结果(如图2),张教授很遗憾地表示,学生的思维定势还是太强了。 Story 1: The sentence can not be sentenced to work! Before designing the “Preliminary Understanding of Fraction”, I saw a paper entitled “Some Discussions and Discussions on Elementary Mathematics in Primary School” published by Professor Zhang Din-chou in “Primary School Teaching”. Among them, some questions about “fly in ” are raised for “score ” - what scores did you see in Figure 1? According to the survey results at that time (Figure 2), Professor Zhang regretfully Said that the students’ mindset is still too strong.