常见教师以手放在目上教“看”字、用板压火教“灭”字,形象生动,学生识记深刻;又常见教师讲解部首“犭”表示动物义,简洁明了,学生因此以简驭繁地掌握了“猫、狗、狼、狮、狐狸、狼狈”等一串字(词)。教学为何如此有效?愚以为,主要原因是教师掌握了这些字和部首的科学知识。由此可见,要提高识字效率,教师必须掌握汉字科学的相 Common teachers put their hands on the head to teach “look ” word, using pressure on the board to teach “off ” word, vivid images, students a deep memory; common teachers explain radical “” , Concise and clear, so the students to simple and easy to master the “cat, dog, wolf, lion, fox, awkward ” and a bunch of words (words). Why teaching so effective? Foolishly, mainly because teachers master these words and radical scientific knowledge. Thus, to improve literacy efficiency, teachers must master the phase of Chinese science