Click image to preview: Principal Investigator: Suzanna Loper Project or Group Affiliation: Constructing and Critiquing Arguments in Middle School Science Classrooms: Supporting Teachers with Multimedia Educative Curriculum Materials Discipline/Topic: Science Target Audience: Middle School Handout(s): Loper MECM PI Meeting 2014 Handout.pdf Co-Principal Investigator(s): Katherine McNeill Jacqueline Barber