本节课我在充分理解教材的基础上,本着设、探、练、拓、解的教学模式,引导学生大胆猜想、探索、交流、获得知识,促使学生在教师的指导下生动活泼地、主动地、富有个性地学习。其次根据变式分层的思想,设计具有一定跨度的问题串,组织学生进行变式训练,有效地实施分层次教学,使每个学生都能得到充分发展。 In this class, based on a thorough understanding of the teaching materials, I guided the students to boldly conjecture, explore, exchange, and acquire knowledge based on the teaching methods of design, exploration, practice, extension, and solution. This led students to work actively and energetically under the guidance of teachers. Learn actively and personally. Secondly, according to the idea of ​​variant stratification, we design problem strings with a certain span, organize students to perform variant training, and effectively implement hierarchical teaching so that each student can be fully developed.