How Difficult is a Problem? Handling Multi-layered Information Conveyed in a Variety of Codes

We use statistical data to identify the problems that appear to be difficult with students in a problem-solving contest counting 9,580 participants from grades 2 and 3. Our analysis considers the level of complexity of the reading and problem-solving processes, as well as the diversity of the forms the information is conveyed by. We found the students’ inability to control a variety of information displays, with impact in problem solving. These results bring about a relevant starting point for further training in problem posing and solving within real-life contexts.