求翻译：在课前、课中和课后以导学案为载体对学生在知识基础、学习能力和学习需要等方面做学情调查，并依据学情将学生分组是什么意思？

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In the pre-course, classrooms and after-school classes in order to import text as the carrier of students learning in the knowledge-based, learning ability and learning needs of students, and so on, so that students will be based on surveys and student grouping

After the class, the class neutral class take leads study the document as the carrier to the student in the knowledge foundation, learning capability and the study needs and so on the aspects to make study the sentiment investigation, and groups based on study the sentiment the student

Lessons in class and before and after guiding student learning plan as carrier in terms of knowledge bases, learning abilities and learning needs investigation and grouped according to the student of emotion