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“解三角形”是高中数学的重要知识点,学生学习也比较容易接受,三角公式应用也比较熟练,做题也容易入手,但我们发现学生解题的错误率较高,原因究竟是什么?要正确解题,关键要抓住什么?
“Resolution triangle” is an important knowledge point for high school mathematics. Students are also more comfortable to learn. Trigonometric formulas are also more fluent and easy to use. However, we find that students have higher error rates in solving problems. What is the reason? What must be grasped to solve the problem correctly?