精彩的新课引入,能产生“课伊始,趣已生”的效果。同样,巧妙的结尾不仅可以达到“课虽尽,趣犹存”的境界,而且还可以对教学内容、教学活动起到系统概括、画龙点睛和提炼升华的作用。笔者结合几年来的教学经验,谈一下自然课的结课艺术。一、巧设悬念悬念是电影、戏剧、评书、小说等艺术创作中常常采用的艺术手法。通过这种艺术手法,把读者、观众的思绪“悬”了起来,从而产生猜测、期待、渴望等一系列心理状 Into the wonderful new lesson, can produce “the beginning of the lesson, the interest has been born,” the effect. Similarly, the ingenious conclusion can not only achieve the goal of “making lessons practicable and still exist,” but also can systematically summarize teaching contents and teaching activities, draw the finishing touch, and refine and sublimate. The author combined with years of teaching experience, talk about the natural class lesson art. First, clever suspense Suspense is the art of film, drama, storytelling, novels and other artistic practices often used. Through this artistry, readers and spectators' thoughts are “suspended”, giving rise to a series of psychological symptoms such as speculation, expectation and longing