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1背景随着科技的发展,手持技术越来越多地运用到理科实验中,它的最大特点是可以方便而迅速地收集各类数据、图象.苏教版必修1《幂函数》这节,教学任务是探究出几种不同类型的幂函数的图象及其性质.传统教学中,往往是学生在稿纸上研究,用实物投影仪展示,最后教师用电脑作出幂函数的图象来验证.这样的模式,由于电子设备的限制,学生只能看着教师画出图象,因此在短时间内能研究的幂函数有限,很多的猜测、推理得不到及时验证,思维
1 Background With the development of science and technology, hand-held technology is increasingly used in science experiments. Its greatest feature is the ability to collect all kinds of data and images quickly and easily. Su-Education edition compulsory 1 “power function” section The task of teaching is to explore the images and properties of several different types of power functions. In traditional teaching, students often study on manuscript papers, display them on real projectors, and finally teachers use computers to make power function images to verify. Such a model, due to the limitations of electronic devices, students can only watch the teacher draw images, so the power function can be studied in a short time is limited, many guesses, reasoning can not be verified in time, thinking