解答分式不等式，选用数轴标根法比代数方法有更高的正确率。

In solving rational inequalities, using the number line yields a higher correctness rate than using algebraic manipulations.

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解答二次不等式，选用代数方法比数轴标根法有更高的正确率；

While most of the students use algebraic manipulations, some adopted the method of using the number line, and still some few solve by sketching the graphs.

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解答二次不等式，选用代数方法比数轴标根法有更高的正确率；

While most of the students use algebraic manipulations, some adopted the method of using the number line, and still some few solve by sketching the graphs.

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