The situation of choice is one of the most difficult moments to the learner. Should I put a comma here? Is it a good idea to give as many examples as I can? Which of the formulae is the most suitable one? Instead of a mere guess, the learner masters the skills of developing a hypothesis. The hypothesis on resolving the chosen problem is the main outcome of Stage 2.

By the end of working with Stage 2, the learner is able to do the following:

• define the essential parameters in the context of the chosen problem
• establish a connection between various values of the defined parameters in the "passport"
• formulate a hypothesis on resolving the initial problem based on the established connection