ABSTRACT
I have been watching teachers use microcomputers for half a decade now and trying with their help (the teachers) to make sense of what I saw. At first it seemed odd to me that teachers were willing to put up with the inconvenience microcomputers seemed to cause them. My preliminary solution to this puzzle was to think that the microcomputer was a way for already avantgarde teachers to express themselves—a powerful symbol of their commitment to modernity. And thus the microcomputer is worth the trouble it causes.
