PROCEEDINGS OF THE 23RD ANNUAL CONFERENCE ON RESEARCH IN UNDERGRADUATE MATHEMATICS EDUCATION
2020
Boston, Massachusetts
Perspective outside and within spatial diagrams: Pre-service elementary teachers’ investigations of shearing
Page: 1230
This study investigates how spatial diagrams are used by pre-service elementary teachers to construct arguments about measures of solid figures. Dynamic spatial diagrams offer immersive three-dimensional representations of three-dimensional geometric figures, where learners can take perspectives are not accessible in two-dimensional representations. The results describe how PSETs used perspectives outside and within a dynamic spatial diagram to make arguments.