This research aimed to understand what physics and chemistry pre-service teachers learn within pedagogical content knowledge in a lesson study with the topic speed of sound, 8th grade. Participants were three pre-service teachers. This was a qualitative and interpretative study. Data were collected from participant observation, individual…

For the thirty-seventh year, the Research and Theory Division and the Division of Instructional Design of the Association for Educational Communications and Technology (AECT) sponsored the publication of these Proceedings. Papers published in this volume were presented at the annual AECT Convention in Jacksonville, Florida. This year's Proceedings…