Teachers hoping to make sense of the Government's new relationship with schools have been provided with a jigsaw puzzle.
The Department for Education and Skills graph attempts to clarify how the main strands of the new drive fit together, with puzzle pieces marked "Single Conversation", "Data", "Profile" and "School Improvement Partner".
To add to the confusion, the puzzle features additional, vaguer, titles along each of its four axes: "Networking amp; Collaboration", "Challenge", "Trust" and "Support".
Dr Stewart Robinson, a lecturer in business process at Warwick university and expert in modelling structures, said that he had been baffled by the graph. "It's not a way to draw a diagram," he said. "The cardinal sin is that there is no explanation of what it represents - what do the axes mean?
"It seems to be representing a flow of information, but there does not appear to be a logic to it. It would have been better if they had just printed a list of bullet points."
John Bangs, head of education at the National Union of Teachers, said: "How can teachers be expected to brave their way through the Government's maze."