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一、设计思路: 本课为义务教育自然教科书(人教版)第二册动物单元。许多学生从小很喜欢蜗牛,经常捉它们玩,已有了不少关于蜗牛的感性经验。通过引导学生课前捕捉、饲养蜗牛,对蜗牛的外形特征、运动方式和生活习性进行细致观察,使学生对蜗牛有更全面的认识,激发学生大胆研究自然的欲望。从能力训练方面来看,它归为“观察”系列。因此,教学过程中要求教师注重学生观察能力的培养,创设观察情境,讲清观察内容,交待观察方法,让学生通过多种感官去感受自然事物。同时配以图片、电教设备,使用谜语、儿歌、游戏等手段,使自然事物更具吸引力。
First, the design ideas: This course is compulsory education textbook (PEP) second volume animal unit. Many students like snails since childhood, often catching them to play, have a lot of emotional experience about snails. By guiding students to catch and raise snails before class, careful observation on snail's appearance characteristics, exercise patterns and living habits has enabled students to have a more comprehensive understanding of snails and stimulate students to boldly study natural desires. In terms of competency training, it is classified as a “watch” series. Therefore, the teaching process requires teachers to pay attention to the cultivation of students' observation skills, create observation situations, clarify the observation contents, explain the observation methods and let students feel natural things through various senses. At the same time with pictures, audio-visual equipment, the use of riddles, children's songs, games and other means to make the natural things more attractive.