随着课程改革的不断深入,“以学定教、以教促学”的思想早已根植在广大教师心中.面对不同的学生群体,如何始终确保“学生在中央”.本文结合学生的特点,以人教版物理九年级上第十三章第二节《内能》教学为例构建一堂“学生在中央”的物理课.1“引”而生惑,课堂在这里发生在引入内能概念时,通过对机械能知识点的回顾,唤起学生已有的知识经验,为接下来的学习做好知识的铺垫.接着,利用导学单“设问自学”环节,学生 With the continuous deepening of the curriculum reform, the idea of ​​“learning by teaching and teaching by learning” has long been rooted in the hearts of the majority of teachers, and how to always ensure “students in the center ” in the face of different student groups. The characteristics of students, the PEP physics ninth grade on the thirteenth chapter second “internal energy” teaching as an example to build a “students in the central ” physics class .1 “lead ” and confused, classroom Here, when introducing the concept of internal energy, recalling knowledge point of mechanical energy to arouse the existing knowledge and experience of the students and pave the way for the following study.Next, using the guidance form Links, students