Can a robot tutor give too much help? Why timing matters‎

A learner stands in a room with a bottle, a cup and a book. The task is to figure out, step by step, where each object belongs in the room. Under the table? Or perhaps on the chair? A humanoid robot gives the instructions—but in Swahili, a language the learner does not know. To solve the puzzle, the learner must gradually decipher what the robot is saying.