以学生为轴心,让学生积极主动地参与到学习实践与思考中,在动中感悟知识的生成,在动中科学建模,在动中诱发创新。在此,就特级教师华应龙老师执教的“角的度量”教学片断作粗浅赏析。【片段一】激疑促思,让探索充满活力师:怎样量角的大小?生1:可以用量角器。生2:啊——师:你“啊”什么呀?生2:量角器的一条边是弯的,能测出角的大小吗?师:有人表示怀疑,知道用量角器量角的同学请举手。师:有一部分同学知道,有一部分同学不知道。同学们 With students as the center, students should take the initiative to participate in the study and practice of thinking. In the process of moving, they will realize the formation of knowledge, model science in motion and induce innovation in action. Here, on the super-teacher Hua Ying-Long teacher coaching “angle measurement ” teaching fragment for Appreciation. [Fragment one] suspicion to promote thinking, to explore the vitality division: how the size of the protractor? Health 1: You can use protractor. Health 2: ah - Teacher: You “ah ” What? Health 2: Protractor side is curved, can measure the size of the angle? Teacher: Some people expressed doubts, know the amount of angular protractor Raise your hand. Teacher: Some students know that some students do not know. classmates