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对一道中考题的解答从猜想到回归本质的思考,一步一步向前走,沿途风景独好,深深体会“数缺形时少直观,形少数时难入微”的意境。同一道题目,学生在不同的学习阶段会运用不同的方法解答。笔者以2012年福州市中考数学第10题为例,在学生的三个不同学习阶段探索题目的解法,期望引发大家更多思考。1试题呈现题目:如图1,过点C(1,2)分别作x轴、y轴的平
The answer to an examination question from speculation to the essence of thinking, step by step forward, the scenery along the way is unique, deeply aware of “a few lack of shape when less intuitive, shaped in a minority difficult micro” mood. The same topic, students in different stages of learning will use different methods to answer. In 2012, Fuzhou City, the author math test No. 10 as an example, in three different stages of learning students to explore the solution to the problem, expectations lead us to think more. 1 questions presented questions: Figure 1, too point C (1,2), respectively, for the x-axis, y-axis of the flat