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学生在高一代数中已学过y=α(x+m)~2+n的图象,及y=Asin(ωx+φ)+B(ω>0)的图象.如果利用类比的方法把所学的知识适当地归纳与引申,对发展学生的思维将是有益的.兹举下面几例.
The student has learned the image of y=α(x+m)~2+n and the image of y=Asin(ωx+φ)+B(ω>0) in the higher generation number. If the analogy method is used It is useful to develop students’ thinking by properly summarizing and extending what they have learned. Here are a few examples.