PISA 2012 problem-solving answer to question level 2 (traffic)
The CORRECT answer is a highlighted route from Diamond to Einstein that takes 31 minutes as shown below.
At Level 2, students can explore an unfamiliar problem scenario and understand a small part of it. They try, but only partially succeed, to understand and control digital devices with unfamiliar controls, such as home appliances and vending machines. Level 2 problem-solvers can test a simple hypothesis that is given to them and can solve a problem that has a single, specific constraint. They can plan and carry out one step at a time to achieve a sub-goal, and have some capacity to monitor overall progress towards a solution.
NATURE OF THE TASK
Highlight the shortest route between two distant points on a map. An indication in the task prompt can be used to verify that the solution found corresponds to the shortest route.
The problem is static i.e. all information is disclosed at the outset. The setting is non-technology because the problem does not involve a technological device and the focus is social because the problem involves the community or society in general.
PROBLEM SOLVING PROCESS
The process is planning and executing because it consists of goal setting, including clarifying the overall goal, and setting sub-goals, where necessary; and devising a plan or strategy to reach the goal state, including the steps to be undertaken; and executing the plan.