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在学习一次函数时,尤其是一次函数图像学习感觉很困难,有时不知从何处着手,在这里,主要从例举行程类问题图像作一个解决问题的方法。行程类一次函数试题是中考数学的热点题型。这类试题将行程问题蕴涵在一次函数之中,以图像、点坐标方式的组合形式呈现,灵活性强,对学生分析问题、解决问题的能力要求较高,重在考查学生的识图能力和创新意识。传统的行程类问题以方程应用为主。随着新课程的实施,近几年大量地出现了根据图像信息运用一次函数解决行程问题的试题,充分体现了课程标准的理念。结合近几年中考题型,作相应的说明。
When learning a function, especially one-time function image learning is very difficult, and sometimes I do not know where to start. Here, we mainly make a problem-solving method by enumerating the problem images. Trip type test questions is a hot test questions in math. Such questions will be included in the trip problem in a function, the image, the form of point coordinates presented in the form of flexibility, strong ability to analyze and solve the problem of students, focusing on examining students’ ability and innovative mind. The traditional travel problem is based on equation. With the implementation of the new curriculum, in recent years, a large number of examination questions that use the first order function to solve the problem of traveling according to the image information have appeared in recent years, which fully embodies the concept of curriculum standard. Combined with the recent exam questions, make the appropriate explanation.