These proceedings include two lectures followed by working group and topic group contributions in reduced format. The two lectures were by Heinrich Bauersfeld, speaking on contributions to a fundamental theory of mathematics learning and teaching, and Henry Pollak, speaking on the relationship between applications of mathematics and the teaching of mathematics. Working groups concerned lessons from research about student errors, Logo activities for the high school, the impact of symbolic manipulation software on the teaching of calculus, and the role of feelings in learning mathematics. Topic groups considered exploratory problem solving in the mathematics classroom, epistemological fallacies, and recent Canadian research concerning teaching, gender, and mathematics. (MNS)