朱熹语 :小疑则小进 ,大疑则大进 .物理学是研究物理现象和物理活动规律的科学 ,积极思考 ,大胆质疑是创新品质的重要方面 .通过鼓励质疑 ,可以培养学生的求知欲望和探新精神 .在学习“杠杆的应用”之后 ,教材是这样阐述的 :“托盘天平、学生天平是支点在中间的等臂杠杆 .”有? Zhu Xiyu: Small doubts are small, big doubts are big. Physics is a science that studies the laws of physical phenomena and physical activity. Positive thinking and bold questioning are important aspects of innovation quality. By encouraging questions, students can develop their desire for knowledge. And explore the new spirit. After learning “the application of leverage”, the textbook is elaborated as follows: “Pallet balance, student balance is the fulcrum in the middle of the arm lever.” Yes?