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假设思想是数学中重要的基本思想之一,它是通过设定的假想前提存在为条件,运用间接推理解答问题的思考方法。小学生往往习惯于相信眼见为实的真实存在,对接受和使用假设思想有一定困难。因此,数学教学中要关注对假设思想的早期渗透。下面选取三个教学案例,浅谈小学生假设思想的早期渗透的思考。
Hypothetical thinking is one of the most important basic ideas in mathematics. It is a method of thinking that uses indirect reasoning to answer questions through the existence of hypothetical premises. Pupils are often accustomed to believing that seeing is true and have some difficulties in accepting and using hypothetical ideas. Therefore, mathematics teaching should pay attention to the early infiltration of hypothetical thinking. The following three selected teaching cases, to talk about the early pupil hypothetical thinking of the early infiltration.