叶澜教授指出:“课堂应是向未知方向挺进的旅程,随时都有可能发现意外的通道和美丽的图景,而不是一切都必须遵循固定线路而没有激情的行程。”美术教学中的预设与生成是使学生在潜移默化的过程中逐步提高美术素养,以及学生运用知识、技能进行艺术表现的创造能力、审美能力和实践能力等各方面能力的综合体现。预设是教师在开始教学活动之前的一种 Professor Ye Lan pointed out: “Classroom should be a journey that is advancing in an unknown direction. You may find unexpected passageway and beautiful scenery at any time. Instead of having to follow a fixed route and have no passion for the journey, everything should be done.” Pre-setting and generating is a comprehensive embodiment of students ’gradual improvement of artistic accomplishment in the subtle process as well as students’ abilities of creative ability, aesthetic ability and practical ability to apply knowledge and skills to artistic expression. Presets are a type of teacher before beginning a teaching activity