1.学前阶段:教师提供资料,学生自主学习,形成知识框架。教师根据教学目标、教学重难点布置学习任务单,提供在线学习的资源平台。学习任务的布置可以依据教学内容的难易程度及其学习特点来进行,如上传视频、音频录像、动画等媒体语言材料,也可以拍五至十分钟的微课,以帮助学生解决难点。之后,教师辅助学生组建学习小组,完成任务单的任务。2.学中阶段:协作学习,内化吃透知识。(1)随机检查,情境创设。首先,上课之前,教 1. Pre-school stage: teachers provide information, students learn independently, the formation of knowledge framework. According to the teaching objectives of teachers, teaching difficult task arrangement of learning tasks, to provide online learning resources platform. The assignment of learning tasks can be based on the ease of teaching and learning characteristics, such as uploading media and language materials such as videos, audio videos and animations, and taking five to ten minute micro classes to help students solve their difficulties. After that, the teacher assists the students in setting up a learning group to complete the tasks of the task list. 2. Learning stage: collaborative learning, internalize knowledge. (1) random inspection, the situation created. First, teach before class