求翻译：一改前人只强调对学生学习或者老师知识储备的简单要求，通过对影响课堂教学质量的各要素进行调查、分析和总结。是什么意思？

Changed their predecessors only emphasizes the simple requirements of the reserves on student learning or teacher knowledge, investigate, analyze and summarize the various elements affecting the quality of classroom teaching.

Only a few years ago to the students that learning or knowledge of teachers, through simple requirements that affect the quality of classroom instruction for the survey, element analysis and summary.

As soon as changes the predecessor only to emphasize studies or teacher to the student the knowledge reserve simple request, through to affects the classroom instruction quality various essential factors to carry on the investigation, the analysis and the summary.

Predecessors only focus on student learning, or modified by a simple request of teacher knowledge, influence the quality of classroom teaching through the elements of an investigation, analysis and summary.

正在翻译，请等待...