交互式电子白板是对传统教学模式的一场革命性突破,在电学教学中,要练习根据电路图连接实物图,显示带电粒子的入射方向变化时粒子的轨迹和出射点的位置变动及解决带电粒子运动的临界问题。可利用白板中的资源库,以及椭圆、直线、组合等工具,就能很方便地解决这些问题,且直观形象省时,课堂教学效率自然提高。 Interactive whiteboard is a revolutionary breakthrough in the traditional teaching mode. In electrical teaching, it is necessary to practice the connection of the physical map according to the circuit diagram to show the change of particle trajectory and exit point when the incident direction of charged particles changes and to solve the problem of charged particles The critical issue of exercise. These resources can be easily and effectively solved by utilizing the resource library in the whiteboard, the tools such as ovals, lines and combinations, and the intuitive image saves time and the efficiency of class teaching naturally increases.