一、用图“原则”学生对图象的认识,是由具体转化到抽象的思维过程。由于学生思维的目的性、趋向性、序列性、灵活性和差异性,都会直接影响到对图象语言的感受、贮存和处理。因此,教学过程中需根据对象的实际,准确灵活地“播映”图象,以此加深学生对课本知识的理解,启动其思维,发展其智能。1、要对比“播映”,使抽象的内容具体化,如“图21光合作用过程的图解”和“图22有氧呼吸过程的图解”两幅图,形象地反映了光合作用和 First, using the “principles” of students’ understanding of images is a process of transformation from concrete to abstract thinking. Due to the purpose, orientation, sequence, flexibility and diversity of students’ thinking, they will directly affect the perception, storage and processing of the image language. Therefore, in the teaching process, the images must be accurately and flexibly “visualized” according to the actual situation of the subject, so as to deepen students’ understanding of textbook knowledge, start their thinking, and develop their intelligence. 1. Contrast “casting” with concrete abstract content, such as “Figure 21 Photosynthesis Process Diagram” and “Figure 22 Aerobic Respiration Process Diagram”, which graphically reflect photosynthesis and