“我认为知识是……”“不,我认为,知识是……”乍一听,或许你会以为这是一次辩论赛上同学们的高谈阔论。其实不然。这是一堂四年级数学课。教学内容是苏教版教材第七册的“认识线段、射线和直线”。课堂上教师弓导同学通过观察,比较三种线的异同:师:“手电筒、太阳等射出的光线,我们都可以把它看成是射线”。 “I think knowledge is ... ” “No, I think, knowledge is ... ” At first glance, maybe you might think this is a rhetoric for classmates. actually not. This is a fourth grade math class. Teaching content is the seventh edition of the teaching materials of the Soviet version of “understanding line, ray and line ”. Teachers in the classroom led the bow through observation, to compare the similarities and differences between the three kinds of lines: Teacher: “Flashlight, the sun and other light emitted, we can think of it as a ray ”.