TIMSS-Repeat was intended to measure the trends in achievment between 1994/1995 and 1998/1999. Four years is a relatively short time to measure such trends, but nonetheless policy makers and those involved in educational planning look for any such shifts as indications of improvement. With so much happening in South Africa during this period, it is important to monitor the effects of these changes in education upon pupils' achievement in mathematics and science. This report is intended to capture the key findings on a descriptive level, and to include information about pupils' achievement, the schools which the tested pupils attended, their mathematics and science classrooms and teachers, and some information about the pupils' home background.