教学预设是一项复杂的活动,它需要教师根据学生的知识水平、思维特征,找准所预设的问题、情境与学生思维的契合点,激起学生思维的火花,引起学生思维的共鸣,真正做到精心预设,直面意外,美丽生成。只有这样,课堂才会充满真实和活力。那么,教学中如何进行预设来实现有效的生成,成就精彩的课堂呢?一、在学生认知“知其然”处预设古希腊哲学家亚里士多德提出:“思维自惊奇和疑问开始。”为此,教师应依据教材内容,抓住学生好奇心强的心理特点,精心设疑,制造悬念,使学生处 Teaching presupposition is a complex activity, which requires teachers according to the students ’knowledge, thinking characteristics, identify the pre-set questions, situations and student thinking point of convergence, sparking students thinking spark, arouse the resonance of students’ thinking , Truly meticulous preset, face unexpected, beautiful generation. Only in this way, the classroom will be full of reality and vitality. So, how to pre-set teaching in order to achieve effective generation, wonderful achievements in the classroom it? First, in the student’s cognition “know its natural” preset Ancient Greek philosophers Aristotle proposed: “thinking Since the startled surprises and questions. ”To this end, teachers should be based on teaching materials, students seize the psychological characteristics of strong curiosity, carefully suspect, create suspense, so that students at