在现代生物学教学中,运用多媒体教学手段比传统教学手段更能高效率、高质量、大容量地传递信息。笔者在“藻类植物”一节中,对多媒体优化组合作了尝试,激发了学生学习的兴趣,更好地培养了他们的观察、实验和思维的能力,拓宽了学生的知识面。 1 将实物引进课堂,增强了学生的感性认识 毛泽东在《实践论》中指出:“任何知识的来源在于人的肉体感官对客观外界的感觉。”在生物学教学中,必须使学生尽可能地以各种感官从不同方面对生物体形成正确的感知,才有可能启发学生通过对所研究的 In the teaching of modern biology, the use of multimedia teaching methods can convey information more efficiently, with higher quality and larger capacity than traditional teaching methods. In the section of “Algae”, the author made an attempt to optimize multimedia composition, stimulated students' interest in learning, better trained their ability of observation, experiment and thinking, and broadened their knowledge. 1 The introduction of real objects into the classroom enhances students' perceptual awareness Mao Zedong pointed out in his “Theory of Practice” that “any source of knowledge lies in the perception of human physical senses toward the objective outside world.” In biological teaching, students must be encouraged With various senses from different aspects of the organism to form the correct perception, it is possible to inspire students through the study