1. Blocking the Compulsion to Calculate in Mathematics Learning - Alyssa Lawson, California State University - Los Angeles; Arineh Mirinjian; Ji Son

2. Effects of Tree and Matrix Representations on Probability Problem Solving - Chenmu Xing, Wesleyan University; James E. Corter, Teachers College, Columbia University; Doris Zahner, Council for Aid to Education

3. Efficiency or Understanding? Results of an Explorative Study Comparing Two Different Algorithms of Written Subtraction - Hedwig Gasteiger, Universität Osnabrück; Solveig Jensen

4. Embodied Account of Geometry Proof, Insight, and Intuition Among Novices, Experts, and English Language Learners - Mitchell J. Nathan, University of Wisconsin - Madison; Candace A. Walkington, Southern Methodist University; Rebecca Vinsonhaler, University of Wisconsin - Madison; Joseph E Michaelis, University of Wisconsin - Madison; John McGinty, University of Wisconsin - Madison; John Vito Binzak, University of Wisconsin - Madison; Oh Hoon Kwon, University of Wisconsin - Madison

5. Enhancement of Spontaneous Focusing on Numerosity Integrated With Computerized Arithmetical Training - Minna M Hannula-Sormunen, University of Turku; Anna Alanen; Erno A. Lehtinen, University of Turku; Jake A. McMullen, University of Turku

6. Examining Additional Constructs to Test the Guidance Fading Effect - Dana Miller-Cotto, University of Pittsburgh; James P. Byrnes, Temple University

7. Formative Assessment in High School Mathematics Education: Computer-Aided Diagnostics Tools Predict End-of-Course Performance - Heath Andrew Thompson, Walden University; Christopher Atkinson, Walden University; Nicolae Nistor, Walden University; Markus Berndt, Walden University

8. Fraction Knowledge as a Predictor of Performance and Learning in Preservice Teachers Learning Algebra - Kristie Jones Newton, Temple University; Julie L. Booth, Temple University; Diane Crotty, Temple University; Kayla Copeland, Temple University

9. Project-Based Instruction With Mathematical Modeling: Preservice Teachers' View on Tasks and Challenges - Joo young Park, Florida Institute of Technology

10. Replicating the Effects of Experienced and Novice Implementers of Schema-Based Instruction on Students' Proportional Problem Solving - Asha K. Jitendra, University of Minnesota; Michael R. Harwell, University of Minnesota; Soo-hyun Im, Teachers College, Columbia University; Stacy R. Karl, University of Minnesota - Twin Cities; Susan Slater, University of Minnesota

11. Teachers' Abilities to Reason About Fixed Numbers of Variable-Sized Parts - Chandra H. Orrill, University of Massachusetts - Dartmouth; Jinsook Frances Park, University of Massachusetts - Dartmouth; John E. Millett, University of Massachusetts - Dartmouth; James P. Burke, University of Massachusetts - Dartmouth

12. Testing Approaches to Improve Second-Grade Students' Understanding of Mathematical Equivalence - Jodi Davenport, WestEd; Kristen Johannes, WestEd; Yvonne Kao, WestEd; Caroline Byrd Hornburg, Purdue University; Nicole M. McNeil, University of Notre Dame

13. The Effects of a Mental Mathematics Intervention on Seventh Graders' Relational Thinking - Alexandra N. Kindrat, Concordia University - Montreal; Helena P. Osana, Concordia University

14. The Role of Deep Questions in Promoting Elementary Students' Mathematical Comprehension - Ryan Hassler, Pennsylvania State University - Berks; Meixia Ding, Temple University

15. Using Learning Principles to Address Fraction Misconceptions - Christina Barbieri, University of Delaware; Nancy C. Jordan, University of Delaware; Julie L. Booth, Temple University

16. What's Not Equal About Equal Sharing? Effects of Context on Fourth Graders' Performance on Fractions Problems - Katherine Foster, Concordia University - Montreal; Helena P. Osana, Concordia University

17. A National Assessment of the Arts: The New Zealand Approach - Charles William Darr, New Zealand Council for Educational Research

18. Assessment Trends in Reading Development Between English Language Learner (ELL) and Non-ELL Students - Raffaela Wolf, Lexia Learning Systems; Alison Mitchell

19. Automated Scoring of Scientific Practices Using the Next Generation Science Standards Learning Assessment System - A.J. Womack, University of Missouri; Eric Wulff, University of Missouri - Columbia; Troy D. Sadler, University of Missouri - Columbia

20. Developing Scales and Investigating Writing Proficiency Among Fifth- and Eighth-Grade Students in Norway - Arne Johannes Aasen, Norwegian University of Sceince and Technology; Gustaf Bernhard Uno Skar, Norwegian University of Sceince and Technology

21. Informing a Learning Inquiry Program Using a Year 8 Inquiry Skills Assessment Tool - Man Ching Esther Chan, The University of Melbourne

22. Modifying Nonessential Language Features to Lessen the Score Gap Between English Learners (ELs) and Non-ELs - Sharon Nelson-Barber, WestEd; Elise Trumbull, Independent Consultant; Chun-Wei Huang; George E. DeBoer, American Association for the Advancement of Science; Cari F. Herrmann-Abell, BSCS Science Learning; Sarah Glassman, Smithsonian Science Education Center

23. Presentation Mode Effects in Large-Scale Writing Assessments - Thomas Canz, FernUniversität in Hagen; Lars Hoffmann

24. The Development and Validation of a 21st-Century Skills Instrument: Measuring Secondary School Students' Skills - Adem Ekmekci, Rice University; Alpaslan Sahin, Harmony Public Schools

25. Using Multilevel Logistic Regression to Inform Reading Development: Orthographic Structure Matters - Calvary R Diggs, University of Minnesota

26. Validity of Observational Measures of Classroom Interaction: Who and What to Observe? - Noreen M. Webb, University of California - Los Angeles; Marsha M. Ing, University of California - Riverside; Megan L. Franke, University of California - Los Angeles; Nicholas Charles Johnson, University of California - Los Angeles; Joy Zimmerman, University of California - Los Angeles

27. "No Fun Games": Engagement Effects and Favorable Elements of Two Gameful Assessment Prototypes - Meg A Guerreiro, Northwest Evaluation Association; Chase Nordengren, NWEA

28. Data Visualization in Public Education: Longitudinal Student-, Intervention-, School-, and District-Level Performance Modeling - Warren E. Lacefield, Academic Software, Inc.; Brooks Applegate, Western Michigan University

29. What ARNIEdocs.info Reveals About Research, Evaluation, and Assessment in Schools - Glynn Ligon, ESP Solutions Group

30. Challenges Assessing the Impact of Project-Based Learning on Critical Thinking Skills - J. Bryan Henderson, Arizona State University; Kevin Close, Arizona State University; Stephanie Sowl, Iowa State University; Scott C. Marley, Arizona State University; Natalie Nailor, Arizona State University; M Jeanne Wilcox, Arizona State University

31. Decision Making With Confidence: Validation of a Large Urban District's Multiple-Measure Teacher Evaluation System - Jeffrey Alexander White, Los Angeles Unified School District; Jonathan Lesser, Los Angeles Unified School District; Martha Viridiana Cortes, Los Angeles Unified School District; Jolene Chavira, Los Angeles Unified School District

32. Examining the Relationship Between Teacher Turnover and Teacher Engagement - Ariel Taylor, Wharton County Junior College; Virginia Walker Snodgrass Rangel, University of Houston

33. Rural and Ready: Impact Evaluation of an Educator Effectiveness System in Rural Tennessee - Joshua H. Barnett, National Institute for Excellence in Teaching; Tanee Hudgens, National Institute for Excellence in Teaching

34. The Causal Effect of Teacher Match on Student Achievement - Brian Kisida, University of Missouri; Anna J. Egalite, North Carolina State University; Daniel Henry Bowen, Texas A&M University

35. What Do You Know? How Educators' Perceptions of Career and Technical Education Relate to Facebook Visibility - Dana Seymour, Mississippi; Kristen Dechert, Mississippi State University