随着时代的进步,效益成了人们追求的目标,课堂教学也是如此,如何向四十分钟的课堂教学要效率呢?精心选择教学内容,设计有效练习,考虑预设与生成,设计评价是构建有效课堂的必不可少的要素。这样,学生就能在高效的课堂中撞击出思维的火花,自由自在地徜徉在知识的海洋中。 With the progress of the times, efficiency has become the pursuit of people’s goals, classroom teaching as well, how to forty minutes of classroom teaching to efficiency? Careful choice of teaching content, design effective practice, consider the default and generated, the design evaluation is to build An Essential Element for Effective Classroom. In this way, students can hit the spark of thinking in an efficient classroom and wander freely in the ocean of knowledge.