M.Ed. / The computer technology can be used as a complementary tool for teaching as well as a learning tool. Whilst not having the same level of computer use as the developed countries, South Africa is increasingly becoming a society of technology users; therefore, one prime goal of education would be to develop a basic knowledge of the structure and operating principle behind the use of computers in teaching and learning. This study was conducted at a selected public secondary school in Johannesburg West District, Gauteng Province. It focuses on the design and implementation of Data Handling lesson through computer-based spreadsheets for Grade 10 learners. The design type of this study is qualitative design experiment method with a small component of quantitative approach. This method is regarded as an educational intervention developed as a way of carrying out formative research to test and refine educational designs on the principles derived from earlier research. The method addressed the curricular content (Data Handling) in the classroom as well as PowerPoint, Microsoft Word and Spreadsheets software design. The design framework is derived from design principles generated from instructional system design theory and constructivist perspective. Design principles are used as a framework for the analysis of the learners’ and teacher’s experiences of a Data Handling lesson through computer-based spreadsheets. Data was collected through observation, interviews and assessment activities Findings suggested that the use of computer-based spreadsheets in teaching and learning had contributed positive effect towards the learning of Data Handling. Both teacher and her learners identified the positive experiences of fun and interest in using computer-based spreadsheets in teaching and learning.