Abstract
The learning and understanding of negative numbers was part of a broader study carried out to explore the quality of mathematical thought processes (MTP) of 110 first-year mathematics university students. A mathematical item on finding the 'product of two nega.t~ve numbers' was designed specifIcally for this purpose. The quality of the responses was . assessed using the SOLO taxonomy evaluation technique (Biggs & Collis, 1982). Quality is here defined as logic, depth and clarity of MTP. An alarming 94% of the responses equated understanding to learning the 'rule', two negatives make a plus. A 71 % of the responses were categorised as unistructural SOLO level in the conrete symbolic mode. The findings strongly suggest that such learning and knowledge is a function of teaching strategy and that rote learning rules inhibits quality learning.