Abstract
This paper considers the effectiveness of the traditional "first principles"
approach to differential calculus and investigates some of the conceptual
difficulties associated with it. Materials developed by Mary Barnes were
adapted to produce a sequence of lessons characterised by investigative
exercises and realistic calculus problems for a group of year 11 students. The
lessons proved successful in improving students' conceptual understanding
without impairing their ability to perform standard calculus techniques. They
also reported positive feelings towards their study of calculus.
Michael Cavanagh
Student Understandings In Differential Calculus