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在数学解题中,图象法以其直观、形象、简捷深受青睐,许多教师在教学中也十分重视培养学生的形象思维。的确,图象的直观为人们分析问题、简化解题开辟了一条重要的途径,但在具体问题的解决中图形的准确性、存在性、一般性、合理性,还有数学书写表达的规范与否,都给解题的正误产生巨大的影响。在教学中常发现学生在利用图象解题时,由于缺乏对图形
In mathematics problem solving, the image method is favored for its intuitive, vivid and simple. Many teachers pay great attention to training students’ image thinking in teaching. Indeed, the intuitiveness of images has opened up an important way for people to analyze problems and simplify problem solving. However, in the resolution of specific problems, the accuracy, existence, generality, and rationality of graphs, as well as the specification of mathematical writing expressions No, they all have a huge impact on the correctness of the problem. Often found in the teaching of students in the use of images to solve problems due to the lack of graphics