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With the start of the semester, many PhD students get the opportunity to supervise bachelor or master students, on a project with a topic related to their work. As such, the student can be seen as a tool to perform work for the PhD student. However, the reasons for taking charge of a bachelor or master student are more diverse. Moreover, supervising in an efficient manner may be more challenging that initially considered. Accordingly, find some tips 'n tricks from Science Fun Arts:
http://www.sciencefarts.com/super-vision.html