Click image to preview: Principal Investigator: Carolyn Maher Project or Group Affiliation: Cyber-enabled Design Research to Enhance Teachers' Critical Thinking Using a Major Video Collection on Children's Mathematical Reasoning (Collaborative Research: Maher) Discipline/Topic: Mathematics Target Audience: Elementary School Middle School High School Co-Principal Investigator(s): Grace Agnew Marjory Palius Cindy Hmelo-Silver