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Help with Database task

Hi guys, this is a relational diagram of what I have done for an assignment..
Totally lost on this. Any tips of how I could improve on this so that I wouldn't encounter serious problems while inputting data in these using Microsoft Access? We are required to include dummy datas and create forms for this later on..
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Is the Student.SubjectSchedule correct? Could you elaborate on the SubjectSchedule?
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It is so that the student and teacher have data for the time of the class.. Is there a problem there?
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I understand - that makes sense. By implication , the student has one subject schedule.
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yea, I removed the subject schedule, seemed repetitive I guess.. really lost now, changed some stuff, seems to be more messed up, lol
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