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我们知道题目中信息亮度越强,解题思路就越畅通,而几乎所有的题目都不会直接把全部信息显示出来,这就要求我们要善于从题目中分析、获取、加工和发现重要的信息.而获取解题信息又离不开观察、联想、猜想、类比、转化等思维活动,解题信息的彻底暴露需要选择适当的探求方法,那么如何探求解题信息呢?一、学会观察,发现数字的信息例1如图:P是等边△ABC内一点,PA=3,PB=4,Pc=5,求∠APB的度数.分析观察到已知条件中的数字3、4、5,数感强的
We know that the stronger the information in the subject, the smoother the problem solving idea, and almost all the questions do not directly display the whole information. This requires us to be good at analyzing, acquiring, processing and discovering important information from the subject And access to problem information can not be separated from the thinking, such as observation, association, conjecture, analogy, transformation and other thinking activities, the thorough exposure of problem solving information needs to select the appropriate search methods, then how to explore the problem solving information? First, learn to observe and discover Figure 1 shows the example of digital information: P is equal point △ ABC within a point, PA = 3, PB = 4, Pc = 5, find ∠APB degrees analysis of the known conditions of the figures 3,4,5, Strong sense of number