PROJECT-SET MATERIALS FOR THE TEACHING AND LEARNING OF SAMPLING VARIABILITY AND REGRESSION

To address the increased need for statistical literacy across the world, high quality statistical preparation of teachers is needed. Project-SET is an NSF funded project aimed at developing materials to prepare secondary teachers to teach statistics. In this paper, we present results from a professional development (PD) project designed to test whether the materials are effective in preparing teachers to teach sampling variability and regression. Eleven teachers were recruited to take a 45-hour PD that utilized the materials. Participants took the Comprehensive Assessment of Outcomes in Statistics (CAOS) as a pre- and post-test. Results indicate that Project-SET materials were effective in increasing teacher scores. PD participants were also given open-ended assessments. Teacher answers revealed that misunderstandings were present in their thinking.