求翻译：因此，本文通过研究“自主发明制作和使用教具与课堂教学有效性”的关系，现状及问题成因，提出相关对策，借以提高课堂教学实效性。是什么意思？

Therefore, by studying the relationship between status and cause of the problem of independent invention of the production and use of teaching aids and the effectiveness of classroom teaching put forward relevant countermeasures in order to improve teaching effectiveness.

Therefore, this research through the production and use their own invented teaching aids and classroom teaching effectiveness, and the current status of the relationship between causes and issues, propose some measures to enhance classroom teaching effectiveness.

Therefore, this article “the independent invention manufactures and uses the teaching aid and the classroom instruction validity” the relations through the research, the present situation and the question origin, proposed the correlation countermeasure, in order to enhances the classroom instruction

Therefore, this paper studies "independent invention creation and use of teaching aids and teaching effective" relationship, status quo and causes of, relevant measures, as a means of improving the effectiveness of classroom teaching.

正在翻译，请等待...