A deep analysis of the linear algebra teaching situation is made,some useful ideas forthe main teaching line of linear algebrafrom different perspectives are provided.Several examples are given to illustrate that paying attention to the main teaching line in the linear algebra teaching is an effective way to solve the difficulties and improve the teaching quality.%分析了线性代数教学现状，从不同角度对线性代数的教学主线进行了探索研究。举例说明在线性代数教学过程中重视对教学主线的研究，是化解教学难点，提高教学质量的有效途径。
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