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在任教省编义务教育五年制小学教材的两年来,我比较重视电教媒体(主要是投影)在数学课中的运用。教学中除了正确使用好与文字教材配套的投影片外,还常自制一些投影片(包括单片及各种复合片)进行教学。教学实践证明:在数学课中正确地、经常性地使用投影教学,能使学生学得主动,教师教得轻松,优化课堂教学。一、运用投影教学展示知识的形成过程.引导学生将感性认识上升到理性认识。文字教材中有的内容比较抽象,凭教师的讲解,学生很难理解。运用投影教学,就能帮助学生积累丰富的感性材料,逐步形成知识。
In the two years of compulsory education five-year primary school teaching materials, I pay more attention to the use of audio-visual media (mainly projection) in math class. Teaching in addition to the proper use of textbooks and textbooks supporting films, but also often make some of the projection film (including single and various composite films) for teaching. The teaching practice proves that using the projection teaching correctly and regularly in math class can make the students learn actively, the teachers can easily teach and the class teaching is optimized. First, the use of projection teaching shows the formation of knowledge to guide students to perceptual awareness rose to rational understanding. Some textbooks are more abstract, with the teacher’s explanation, students are difficult to understand. The use of projection teaching, can help students accumulate a wealth of sensuous materials, and gradually form the knowledge.