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课本例题除具有巩固本节重要概念的作用外,还常常教给学生一种重要的解题方法,有的题甚至内含着丰富的“潜力”。只要充分使用、挖潜、拓广课本上例(习)题,运用某种数学思想、方法、观点稍作变换得到的全新题目,即可达到大纲要求的“掌握”、“牢固掌握”“熟练掌握”的境界,必然提高同学们的思维能力。 范例一 对例题中写有“任意”二字,或含有“任意”二字意思的,可取其各种不同的特殊位置或数字而得到新题。(变动观点)
In addition to consolidating the important concepts of this section, textbook examples often teach students an important method of solving problems. Some questions even contain rich “potentials”. As long as the full use, potential tapping, and broadening of the examples (learnings) in the textbooks, and the use of certain mathematical ideas, methods, and viewpoints, can be achieved through the transformation of new topics, the “mastery”, “firm mastery” and “proficient mastery” of the outline requirements can be achieved. The realm of the school will inevitably improve the students’ thinking ability. Example 1 For example, the word “arbitrary” is written in the example sentence, or the word “arbitrary” is used. It is possible to obtain new questions by taking its various special positions or numbers. (Change point of view)