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从直观教学中引起的问题在植物课教学中,多方面利用直观因素加深学生的理解,这是使学生当堂消化所学知识的一个重要因素。但利用标本、模型、挂图和实物以及进行实习和实验,并没能全部解决当堂消化的问题,如讲授“生长发育”的教材,既不可能将一个植物体的发育过程在几十分钟内让学生观察出结果;利用制就的挂图,也会因较多的图才能表明全部发育过程,以致形象罗列,
The Problems Caused by Intuitive Teaching In the teaching of plants, the use of visual factors to deepen students’ understanding in many aspects is an important factor in enabling students to digest their knowledge. However, the use of specimens, models, wall charts and real objects as well as internships and experiments did not completely solve the problem of digestion. For example, teaching “growth and development” did not make it possible for a plant body to develop in tens of minutes Let the students observe the results; the use of hand-made wall charts, but also because of more plans to show all the development process, resulting in the image listed,