Abstract
A plausibility argument is offered in support of the assertion that mathematics education is
unduly dependent upon the forensic metaphor, and that the jazz metaphor is a useful and
contrasting alternative. Five components of jazz playing are briefly outlined: structure,
improvisation, playing outside, pursuit of the ideal, and ‘ways of the hand’. The third of
these, playing outside, is outlined more fully and applied to mathematics education via a
discussion of the role of the mathematics curriculum as public knowledge policy.