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观察法是研究数学问题的基本方法.观察的内容不外乎数量和图形两个方面.观察的方法有整体观察与局部观察;正面观察与反面观察;直接观察与间接观察等.观察时,要盯住观察的目标,灵活的调整观察角度,力争收到最佳观察效果.“横看成岭侧成峰,远近高低各不同”就说明了观察角度对观察效果的决定性影响.
Observing method is the basic method of studying mathematics problems. The content of observation is nothing more than quantity and figure. Observation methods include overall observation and local observation; positive observation and negative observation; direct observation and indirect observation. Keep a close eye on the target of observation, flexibly adjust the angle of observation, and strive to receive the best observation effect. “Viewing into the side of the mountain is a matter of different peaks and heights,” indicating the decisive influence of the observation angle on the observation effect.