Problem-solving has received some attention in Biology, focused largely on Genetics. It has been suggested that the presence of nodes of knowledge and accessible links between the nodes of knowledge, play a vital role in determining success in problem-solving. The purpose of this study was to examine this issue, focusing on first year Biology students. A total of 524 students were involved in a preliminary study at the University of Glasgow, while 1167 students participated in the main experimental work. The main experiment had three stages. In each stage, batteries of tests (cognitive and attitudinal) were used and the outcomes related to students’ performance on an open-ended problem. Four new open-ended problemsolving units were developed.

Problem-solving has received some attention in Biology, focused largely on Genetics. It has been suggested that the presence of nodes of knowledge and accessible links between the nodes of knowledge, play a vital role in determining success in problem-solving. The purpose of this study was to exa...