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中学化学中的数字运算有等式和不等式两种。等式属定式、较具体,呈定向思维;不等式属受式、较抽象,呈发散思维。中学生对化学中的等式运算大多能得心应手,但对不等式的化学意义的建立和求解常感陌生。为此设计不等式的应用,对加强学科间联系,启迪发散思维,提高分析和解决问题的能力,无疑很有必要。本文浅析了不等式在中学化学中的常见应用。
There are two kinds of equations and inequalities in the mathematical operations in middle school chemistry. The equations are fixed and specific, and they are directional thinking. Inequalities are subjective, abstract, and divergent. Middle school students are mostly comfortable with the equations in chemistry, but they are often unfamiliar with the establishment and solution of the chemical meaning of inequalities. To design the application of inequality for this purpose is undoubtedly necessary to strengthen the interdisciplinary links, inspire divergent thinking, and improve the ability to analyze and solve problems. This article analyzes the common application of inequality in middle school chemistry.