Using the computer to diagnose students' difficulties with fractions

Abstract

The objectives of the present study are to develop an automated computer system for diagnosis and remediation and to construct a conceptual model of remediation in fractions. The initial stage of the project began with the construction of an instrument to investigate the subjects' performances in addition of fractions. The items were based on a set of four objectives in addition of fractions. The test was administered to 3000 subjects who were classified as below average in fractions. The test was read ministered a week later. The responses of the subjects were analysed and systematic errors were classified. An automated computer system for diagnosis and remediation in addition of fractions was developed. It consisted of three subsystems, viz. (a) diagnostic system of errors, (b) drill and practice for remediation, and (c) automated generation of text materials for remediation. To accompapy the computer system for diagnosis and remediation, a conceptual model on remediation of addition of fractions was developed which was based on the hypothetical remedial activities.