When I have my students working on problem solving activities, many of them needed support on how to problem solve. I used this as a reflection activity at the end of the lesson. Students would reflect on how they solved the problem solving activities and checked off what they did: Highlight/underline important words, figuring out the question (sometimes that could day the whole time!), using a strategy, etc.
This is a SIMPLE way to have students reflect on their problem solving experience. This is a word document so you can edit the categories.