I borrow some of my pre-teaching experience when defining the problems. Use LEAN or Six Sigma mentality and in particular the Ishikawa (Fishbone) diagram.
I have students identify a 'problem' and then use the six headings to identify possible causes (I prompt them using the six 'why' principal). Once they have completed this diagram, students work through each area to identify possible connections and areas where an app might be a helpful part of the solution.
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