Problem-Solving app. Because problem solving is central to the scientific enterprise, the virtual tablet includes a Problem-Solving
app, which uses the Polya framework to dynamically guide students’ problem-solving activities throughout their
quests in CRYSTAL ISLAND. With the dual goals of improving students’ problem-solving effectiveness and their problem-solving
efficiency, the Problem-Solving app scaffolds problem-solving activities on a per-quest basis by helping students work
through the multi-phase process of (1) Understanding the problem, (2) Devising a plan, (3) Carrying out a plan, and (4) Looking
back (reflecting). Students are dynamically presented support through the Problem-Solving app as they work through
quests.