求翻译：其次。选小题目也是我们进行课题研究的关键点。选准研究的题目只是我们进行课题研究的前提。选准研究题目并不意味着我们的课题研究就能够顺利开展下去，就一定能取得成功。如果我们挑选的题目过于庞大，过于笼统，我们同样不知该如何着手。即使我们花费了很大的人力、物力和财力，也未必会研究出有效的成果。比如，对于“课堂教学的有效性”和“课堂导入的有效性”这两个课题，很显然，后者更容易确定研究方案，收集资料和整理数据，以及形成研究总结，老师们也更容易参与。所以，选小题目也是我们进行有效课题研究的关键。是什么意思？

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Secondly. We also selected the topic of the research topic for key points. Select the topics to be studied by us only for the research topic. Select the topics of research does not mean that our research will be able to carry out this successfully, we will definitely be able to succeed. If we choose

Secondly. Selected topic small is also a key point of our research. Selected research topic is the premise of our research. Selected topic does not mean that our research is carried out smoothly, we will be able to succeed. If we pick topics is too big and too broad, we also do not know how to proce