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新课程初中数学教学目标有这么一条:锻炼学生有条理的说理和表达能力。这就是说从初中开始,学生要比较系统地学习数学知识,比较系统地锻炼逻辑思维能力和分析能力。在小学阶段学生学习的几何比较零散,也比较浅显,学生能很轻松地解答问题,但到了初中,有很多题目不是能轻松解答的,学生往往感到已知条件不够而无法解答。造成“已知条件不够”的最主要原因是题目中暗藏的条件没有被及时挖掘出来。下面就谈谈什么是暗藏条件?经常有哪些暗藏条件?如何挖掘?
The new curriculum junior high school mathematics teaching goal is such a: to exercise the students reasoning and expression skills. This means that starting from junior high school, students should learn maths knowledge more systematically and train their logical thinking ability and analysis ability systematically. In primary school, students’ learning geometry is fragmented and relatively shallow. Students can easily answer questions. However, when they come to junior high school, many questions are not easily answered and students often feel that the known conditions are not enough to answer the questions. The main reason that causes “known condition is not enough ” is that the hidden conditions in the title have not been excavated in time. Here to talk about what is hidden conditions? Often what hidden conditions? How to tap?