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本堂课以导学案为平台,讲练结合,以练为主,符合学生的认知特点,符合当前的检测要求.一道应用题,首先要认真阅读,认真理解题意(情境呈现),将问题中的每一句话(主要是关系型陈述句)转译成文字型关系;再将文字型关系转译为文字型等式或不等式;最后将文字型等式或不等式转译为方程、函数、不等式等数学模型.这个步骤称之为问题的转译.
The class lessons to guide the case as a platform, training combination, practice-based, in line with the cognitive characteristics of students, in line with the current testing requirements.An application problem, we must first read carefully and carefully understand the problem (context), will Each sentence in the question (mainly relational statements) is translated into a textual relationship; then the textual relationship is translated into literal equations or inequalities; finally the literal equations or inequalities are translated into equations, functions, inequalities, etc. Mathematical model. This step is called translating the question.