教学过程的科学化是指以最少的时间和精力,求得课堂教学的最佳效果。要达到这一点,就要求教师依据教学目标精心搞好以下四个设计。一是课堂教学结构设计一般认为,按时间序列把化学课划分为课的开始、课的中心和课的结尾,这样固定的三个部分较为合适,这种划分适合于任何一种课型。课的开始,重 Scientific teaching process refers to the minimum time and energy, the best classroom teaching. To achieve this, teachers are required to carefully make the following four designs based on their teaching goals. First, the classroom teaching structure design is generally believed that, according to the time sequence of chemistry class is divided into the beginning of the lesson, the center of the lesson and the end of the class, so three fixed part is more appropriate, this division is suitable for any kind of lesson. The beginning of the lesson, heavy