教师在教学中能积极创设问题情境,让学生在不断地解决问题中进步,是教师授课的本质所在。教师创设问题情境是指教师创设学生能够产生质疑的问题情境氛围,而后促使学生自己提出问题,再通过查资料或讨论或实地考查或实验操作等方式来解决问题。在日常教学中,适当地穿插一些小情境教学,可能会使你的课堂更加生动、形象、顺利,更有利于学生的学习。本课内容是关于平面几何里简单的几条线的教学,发现在给定射线概念的时候还是个模糊的概念——像手电筒、汽车灯和太阳 Teachers in teaching can actively create a problem situation, so that students continue to solve the problem of progress, is the essence of teaching teachers. Teachers create a problem situation refers to the creation of students can challenge the situation of the situation atmosphere, and then prompted the students to ask questions, and then through the investigation of information or discussion or field test or experimental operation to solve the problem. In daily teaching, appropriate to interspersed some small situation teaching, may make your classroom more vivid, image, smooth, more conducive to student learning. This lesson is about teaching a few simple lines in plane geometry and finding a vague concept given a ray concept - like a flashlight, a car light, and the sun