Vol. 8 Num. 1 (1988) Martha B. Burton A linguistic basis for student difficulties with algebra2 Eric F. Wood Math anxiety and elementary teachers: what does research tell us?8 David Wheeler The limits of rationality14 Chris Hancock Context and creation in the learning of computer programming18 John Fauvel Cartesian and Euclidean rhetoric25 David Pimm Mathematical metaphor30 Paulus Gerdes A widespread decorative motif and the Pythagorean Theorem35 Deborah Ball Unlearning to teach mathematics40