Associations between students’ perceptions of their learning environment and teachers’ interpersonal behavior with their attitudes to their physics classes also were found. It was found from interviews with a sub-sample that particular categories of comments could be identified, physics being a difficult subject, evaluation and assessment not being related to the tertiary entrance examination, and teachers’ plans. These factors appear to be affecting student achievement in physics. Based on all the findings, suggestions for improving the physics laboratory classroom environment and teacher interpersonal behavior with students’ perceptions are provided.