Challenge and motivate
At Research & Development I supervise interns in the phytopathological (plant diseases) laboratory. Supervising an intern takes quite a lot of time, but I also experience it as added value. For example, an intern can investigate certain problems that you otherwise don't have time for.
To achieve a successful internship, I write an internship project in advance with clear goals. The internship must also have added value for the company. Within the internship project, the frameworks have been set by me, but the intern can still steer the project according to his insight and interest. Social interest and the freedom to complete the project as they see fit are challenging and motivating for the intern. In addition, at the start of the internship I ask interns what they would like to learn and we include this in the project. For example, an intern taught herself to program in R-studio on a dataset that she had generated herself.
Besides being of practical use, supervising an intern is also very educational and fun! Through the questions an intern asks, you discover ambiguities in protocols or that you have a gap in your knowledge. In addition, I like to see an intern develop during the internship, both practically and personally. In short, I see supervising an intern as a real addition to my daily work and the company.