中国著名教育家叶澜教授说过:“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风景,而不是一切都必须遵循固定线路而没有激情的行程。”教学中,教师虽有精彩的预设,但课堂是动态的,生成的。在理解和消化知识的过程中,学生或浅尝辄止,或思维凝滞,或临疑难辨,或理解错误。教师如何运用教学智慧,点燃学生思维的火花,让课堂焕发生命的活力与精彩?一、学生浅尝辄止时:逐层推进求深入 Professor Ye Lan, a famous Chinese educator, said: “Classroom should be a journey that goes in an unknown direction. You may find unexpected paths and beautiful scenery at any time. Instead of having to follow a fixed route without passion, ”Teaching, the teacher has wonderful presets, but the classroom is dynamic, generated. In the process of understanding and digesting knowledge, students try their best, or think stagnantly or suspiciously, or understand mistakes. Teachers how to use teaching wisdom, ignite the spark of student thinking, so that the vitality of the classroom and life glow wonderful? First, the students try it out: