As Polyani said: "we can know more than we can tell." 

My prompt today is an article by three experimental psychologists at Oxford, who find that "people are unable to report how they decide whether to move backwards or forwards to catch a ball....most people are unable to describe what happens although their interception strategy is based on controlling changes in this angle [of elevation of gaze]."

Even more striking as evidence of our inability to know how we decide: "Some people confidently choose incorrect descriptions that would guarantee failure of interception demonstrating unconscious knowledge co-existing with systematically different conscious beliefs."

Not all learning is as complex as the calculations we make to catch a ball, but I suggest some of our confidence about what works and what does not work in the classroom may be misplaced or at least overstated.

We need to explore more fully the tacit and the assumed before we seek to standardize.

Daniel Rabuzziis the Executive Director at Mouse.