In Event: Thursday Poster Session 12:40 pm

SIG-Research in Mathematics Education

19. Effects of Problem Contrasts on Second Graders' Integer Addition Strategy Change (Poster 19) - Laura Bofferding, Purdue University; Mahtob Aqazade, Illinois State University

20. Examining One Mathematician’s Class Practices Using a Possible Students’ Cognitive Model of Limit (Poster 20) - Dae S. Hong, University of Iowa; Richard Carlos L. Velasco, University of Florida

21. Identifying Topics and Trends in U.S. Policy/Vision Documents Using Latent Dirichlet Allocation (Poster 21) - Jon D. Davis, Western Michigan University; Paul H. Atandoh, Mercer University

22. Mathematics Teacher Educators’ Debriefing Practices (Poster 22) - Sue Ellen Richardson, Old Dominion University; Signe E. Kastberg, Purdue University; Lizhen Chen, Western Washington University; Mahtob Aqazade, Illinois State University

23. Preservice Elementary Teacher Academic Language Use in Mathematics Error Analysis: A Pilot Study (Poster 23) - Lorena Silva de Andrade Dias, Rowan University; Alicia M. Drelick, Rowan University; Nicholas F. McCann, Springfield School District

24. Teacher Beliefs and Their Influence on Math Instructions for Gifted English Learners (Poster 24) - Jenny Yang, St. John's University; Gulnur Ozbek, St. John's University; Seokhee Cho, St. John's University