用数学构造思想方法解题应遵循熟悉化原则、直观性原则、和谐性原则及相似性原则；
Applying structural thought method to solving mathematical problem will follow the familiar, intuitional, harmonious and similar principle .
中学生在数学学习及解题过程中出现错误是在所难免的，这是一种自然现象。
It is inevitable for middle school students to make mistakes in learning mathematics and solving mathematical questions.
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