Method
The nature of the research study calls for a qualitative method. Utilization of openended
interviews and written prompts were the most appropriate techniques to capture the
essence of how the students perceived engagement in cooperative learning and how this
affected their mathematical thinking. The process of video and audio recording of student
interviews, collecting students written responses, and video and audio recording of students
engaged in cooperative learning resulted in the utilization of multiple methods for data
gathering. Thus, cross data validity and confidence in the findings were achieved through data
triangulation (Patton, 1990).