74. David E. Meltzer, Adaptation of Research-Based Curricular Materials for Middle-School Use, at the 2008 Summer Meeting of the American Association of Physics Teachers, Edmonton, Alberta, Canada, July 21, 2008.

73. David E. Meltzer, What is Teacher “Effectiveness” and How May It Be Assessed?, at the 2008 Winter Meeting of the American Association of Physics Teachers, Baltimore, Maryland, January 21, 2008.

72. David E. Meltzer, Analysis of Shifts in Students’ Reasoning Regarding Electric Field and Potential Concepts, at the 2007 American Physical Society March Meeting, Denver, Colorado, March 5, 2007 [Bulletin of the American Physical Society II, 52 (1), Session A21 (2007)].

71. Warren M. Christensen and David E. Meltzer, “Is Entropy Conserved?” Student Understanding of Entropy in Introductory Physics, poster presentation at the 2007 American Astronomical Society/American Association of Physics Teachers Joint Meeting, Seattle, Washington, January 10, 2007 [Bulletin of the American Astronomical Society 38 (4), 1185 (2006)].

70. Warren M. Christensen and David E. Meltzer, “Is Entropy Conserved?” Student Understanding of Entropy in Introductory Physics, at the 2007 American Astronomical Society/American Association of Physics Teachers Joint Meeting, Seattle, Washington, January 9, 2007 [Bulletin of the American Astronomical Society 38 (4), 1165 (2006)].

69. David E. Meltzer and Warren M. Christensen, Pedagogical Landscape in Upper-Level Thermal Physics, at the 2007 American Astronomical Society/American Association of Physics Teachers Joint Meeting, Seattle, Washington, January 9, 2007 [Bulletin of the American Astronomical Society 38 (4), 1164-1165 (2006)].

68. Warren M. Christensen and Larry Engelhardt, Peer-Led Instruction for a Qualifying Exam Preparatory Course or: How I Learned to Stop Worrying and Love the PhD Qualifying Exam, at the 2006 Physics Education Research Conference, Syracuse, New York, July 26, 2006.

67. David E. Meltzer, Analysis of Shifts in Students’ Reasoning Regarding Electric Field and Potential Concepts, at the 2006 Physics Education Research Conference, Syracuse, New York, July 26, 2006.

66. David E. Meltzer and Warren M. Christensen, Research-based Pedagogical Strategies in Thermal Physics: Development and Assessment, at the 2006 Summer Meeting of the American Association of Physics Teachers, Syracuse, New York, July 25, 2006 [AAPT Announcer 36 (2), 131 (2006)].

65. Warren M. Christensen and David E. Meltzer, Student Thinking Regarding Entropy and the Second Law of Thermodynamics, at the 2006 Summer Meeting of the American Association of Physics Teachers, Syracuse, New York, July 24, 2006 [AAPT Announcer 36 (2), 75 (2006)].

64. David E. Meltzer, Analysis of Shifts in Students’ Reasoning Regarding Electric Field and Potential Concepts, at the Gordon Research Conference on Physics Research and Education: Electromagnetism, Mount Holyoke College, South Hadley, Massachusetts, June 11-16, 2006.

63. Warren M. Christensen and Larry Engelhardt, Peer-Led Instruction for a Qualifying Exam Preparatory Course or: How I Learned to Stop Worrying and Love the PhD Qualifying Exam, at the 2006 American Physical Society April meeting, Dallas, Texas, April 24, 2006.

62. Warren M. Christensen and David E. Meltzer, What’s Entropy? Student Understanding of Thermodynamics in an Introductory Physics Course, at the 2006 Winter Meeting of the American Association of Physics Teachers, Anchorage, Alaska, January 24, 2006 [AAPT Announcer 35 (4), 85 (2005)].

61. David Meltzer, Warren Christensen, and John Thompson, Uneven Development of Students’ Reasoning Regarding Concepts in Thermal Physics, at the 2006 Winter Meeting of the American Association of Physics Teachers, Anchorage, Alaska, January 23, 2006 [AAPT Announcer 35 (4), 80 (2005)].

60. Warren M. Christensen, David E. Meltzer, and Thomas A. Stroman, Students’ Ideas about the State-Function Property of Entropy, at the conference on Foundations and Frontiers in Physics Education Research, Bar Harbor, Maine, August 16, 2005.

59. David E. Meltzer and Thomas J. Greenbowe, Investigations of Student Reasoning in Thermochemistry, at the 2005 Physics Education Research Conference, Salt Lake City, Utah, August 10, 2005 [Poster CP-34].

58. Warren Christensen and David E. Meltzer, Students’ Reasoning Regarding Entropy and the Second Law of Thermodynamics, at the 2005 Summer Meeting of the American Association of Physics Teachers, Salt Lake City, Utah, August 8, 2005 [AAPT Announcer 35 (2), 93 (2005)].

57. David E. Meltzer and Thomas J. Greenbowe, Investigations of Student Reasoning in Thermochemistry, at the 2005 Gordon Research Conference on Chemistry Education Research & Practice, New London, Connecticut, June 28, 2005.

56. David E. Meltzer and Warren M. Christensen, Students’ Reasoning Regarding Entropy and the Second Law of Thermodynamics in an Upper-Level Thermal Physics Course, at the 2005 American Physical Society March Meeting, Los Angeles, California, March 23, 2005.

55. Warren M. Christensen and David E. Meltzer, Student Understanding of Entropy and the Second Law of Thermodynamics in an Introductory Physics Course, at the 2005 American Physical Society March Meeting, Los Angeles, California, March 23, 2005.

54. Warren M. Christensen and David E. Meltzer, Students’ Ideas about Entropy and the Second Law of Thermodynamics, at the 2005 Winter Meeting of the American Association of Physics Teachers, Albuquerque, New Mexico, January 11, 2005 [AAPT Announcer 34 (4), 97 (2004)].

53. David E. Meltzer and Warren M. Christensen, Development of Student Reasoning in an Upper-Level Thermal Physics Course, at the 2005 Winter Meeting of the American Association of Physics Teachers, Albuquerque, New Mexico, January 11, 2005 [AAPT Announcer 34 (4), 97 (2004)].

52. Warren Christensen, Ngoc-Loan Nguyen, and David E. Meltzer, Student Difficulties with Graphical Representation of Vector Products: Crossing and Dotting Beyond t's and i's, at the 2004 Physics Education Research Conference, Sacramento, California, August 4-5, 2004.

51. Warren M. Christensen, Ngoc-Loan P. Nguyen, and David E. Meltzer, Semi-Intuitive Thinking and Reasoning Inconsistencies in Calorimetry, at the 129th National Meeting of the American Association of Physics Teachers, Sacramento, California, August 3, 2004 [AAPT Announcer 34 (2), 138 (2004)].

50. David E. Meltzer, Investigations of Student Learning in Thermochemistry and Thermal Physics, at the 18th Biennial Conference on Chemical Education, Iowa State University, Ames, Iowa, July 20, 2004.

49. David E. Meltzer, Role of Diverse Representational Modes in the Learning of Physics, at the 2004 National Summer Conference Integrating Science and Mathematics Education Research into Teaching, University of Maine, Orono, Maine, June 21, 2004.

48. David E. Meltzer, Students’ Reasoning Regarding Electric Field Concepts Pre- and Post-Instruction, at the 128th National Meeting of the American Association of Physics Teachers, Miami Beach, Florida, January 26, 2004 [AAPT Announcer 33 (4), 98 (2003)].

47. Warren M. Christensen, Ngoc-Loan P. Nguyen, and David E. Meltzer, Intuitive and Rule-based Reasoning in the Context of Calorimetry, at the 128th National Meeting of the American Association of Physics Teachers, Miami Beach, Florida, January 26, 2004 [AAPT Announcer 33 (4), 97 (2003)].

46. Ngoc-Loan Nguyen, Warren M. Christensen, and David E. Meltzer, Students’ Use of Rule-Based Reasoning in the Context of Calorimetry and Thermal Phenomena, at the 2003 Physics Education Research Conference, Madison, Wisconsin, August 6-7, 2003.

45. Ngoc-Loan Nguyen and David E. Meltzer, Identifying and Addressing Student Learning Difficulties in Calorimetry and Thermodynamics, at the 126th National Meeting of the American Association of Physics Teachers, Austin, Texas, January 15, 2003 [AAPT Announcer 32 (4), 112 (2002)].

44. David E. Meltzer, Variability in Student Learning Associated with Diverse Modes of Representation, at the 126th National Meeting of the American Association of Physics Teachers, Austin, Texas, January 13, 2003 [AAPT Announcer 32 (4), 60 (2002)].

43. Ngoc-Loan Nguyen and David E. Meltzer, Student Learning of Calorimetry Concepts, at the 2002 Physics Education Research Conference, Boise, Idaho, August 7, 2002.

42. Bruna Irene Grimberg and David E. Meltzer, Student Understanding of Thermodynamics, at 114th Annual Meeting of the Iowa Academy of Science, Des Moines, Iowa, April 19, 2002.

41. David E. Meltzer, Dynamics of Student Concepts Regarding Electric Field and Potential, at the 124th National Meeting of the American Association of Physics Teachers, Philadelphia, Pennsylvania, January 22, 2002 [AAPT Announcer 31 (4), 127 (2001)].

40. Ngoc-Loan Nguyen and David E. Meltzer, Initial Understanding of Vector Concepts among Students in Introductory Physics Courses, at the 124th National Meeting of the American Association of Physics Teachers, Philadelphia, Pennsylvania, January 22, 2002 [AAPT Announcer 31 (4), 102 (2001)].

39. Ngoc-Loan Nguyen and David E. Meltzer, Student Understanding of Vectors, at the Joint Meeting of the Nebraska and Iowa Sections of the American Association of Physics Teachers, Omaha, Nebraska, November 3, 2001.

38. Kandiah Manivannan and David E. Meltzer, Use of Interactive Demonstrations to Promote Active Learning in Physics Classes, Missouri Section of the American Association of Physics Teachers, Cape Girardeau, Missouri, October 27, 2001.

37. David E. Meltzer, Student Reasoning Regarding Work, Heat, and the First Law of Thermodynamics in an Introductory Physics Course, at the 2001 Physics Education Research Conference, Rochester, New York, July 25, 2001. [Proceedings of the 2001 Physics Education Research Conference, Rochester, New York, pp. 107-110]

36. Laura McCullough and David E. Meltzer, Differences in Male/Female Response Patterns on Alternative-Format Versions of FCI Items, at the 2001 Physics Education Research Conference, Rochester, New York, July 25, 2001. [Proceedings of the 2001 Physics Education Research Conference, Rochester, New York, pp. 103-106]

35. Kandiah Manivannan and David E. Meltzer, Use of In-class Physics Demonstrations in Highly Interactive Format, at the 2001 Physics Education Research Conference, Rochester, New York, July 25, 2001. [Proceedings of the 2001 Physics Education Research Conference, Rochester, New York, pp. 95-98]

34. David E. Meltzer and Thomas J. Greenbowe, Recurrent Areas of Confusion in Student Learning of Thermodynamics, at the Summer Meeting of the American Association of Physics Teachers, Rochester, New York, July 23, 2001. [AAPT Announcer 31 (2), 81 (2001).]

33. Kandiah Manivannan, Cheryl Schaefer, and David E. Meltzer, Promoting Active Learning in Physics Classes Using Interactive Demonstrations, at the Missouri Academy of Sciences, Joplin, Missouri, April 21, 2001.

32. T.J. Greenbowe and D. E. Meltzer, One Student's Understanding of the Laws of Thermodynamics and the Role of Chemical Reaction in Calorimetry Experiments: A Case Study, at the 221st National Meeting of the American Chemical Society, San Diego, California, April 1, 2001.

31. Rebecca S. Lindell Adrian, Melanie S. Bean, Tina Fanetti and David Meltzer, Developing a Concept Inventory to Assess Models of Lunar Phases, at the Winter Meeting of the American Association of Physics Teachers, San Diego, California, January 10, 2001. [AAPT Announcer 30 (4), 114 (2001).]

30. Kandiah Manivannan, Cheryl P. Schaefer, and David E. Meltzer, Promoting Active Learning in Physics Classes Using Interactive Demonstrations, at the Winter Meeting of the American Association of Physics Teachers, San Diego, California, January 8, 2001. [AAPT Announcer 30 (4), 85 (2001).]

29. David E. Meltzer and Thomas J. Greenbowe, Dynamics of Student Learning of Thermodynamics Concepts, at the Winter Meeting of the American Association of Physics Teachers, San Diego, California, January 8, 2001. [AAPT Announcer 30 (4), 76 (2001).]

28. David E. Meltzer, Learning Gains in Physics in Relation to Students’ Mathematics Skills, at the Fall Meeting of the Iowa Section of the American Association of Physics Teachers, Iowa City, Iowa, November 4, 2000.

27. Tom Greenbowe and David Meltzer [joint presentation], Issues in Teaching Science Content to Preservice Elementary Education Majors, Science Education Seminar, Iowa State University, October 3, 2000.

26. David E. Meltzer, Relationship Between Mathematics Preparation and Conceptual Learning Gains, at the 2000 Physics Education Research Conference, Guelph, Ontario, Canada, August 2, 2000.

25. David E. Meltzer, Relationship Between Mathematics Preparation and Conceptual Learning Gains, at the Summer Meeting of the American Association of Physics Teachers, Guelph, Ontario, Canada, July 31, 2000 [AAPT Announcer 30 (2), 111 (2000).]

24. Jack A. Dostal and David E. Meltzer, Student Concepts of Gravity in Introductory Astronomy and Physics Courses, at the Summer Meeting of the American Association of Physics Teachers, Guelph, Ontario, Canada, July 31, 2000 [AAPT Announcer 30 (2), 88 (2000).]

23. David E. Meltzer, Physics Education: An Expanding Research Field within the Physics Department, at conference on Physics and Astronomy at the Millennium, State University of New York at Stony Brook, Stony Brook, New York, June 17, 2000.

22. Kandiah Manivannan and David E. Meltzer, Investigating Student Difficulties Using the Problem Dissection Technique, at the Winter Meeting of the American Association of Physics Teachers, Kissimmee, Florida, January 18, 2000. [AAPT Announcer 29 (4), 88 (1999).]

21. Jack A. Dostal and David E. Meltzer, Student Concepts of Gravity in Astronomical Contexts, poster presentation at the Winter Meeting of the American Association of Physics Teachers, [Kissimmee, Florida, January 17, 2000. [AAPT Announcer 29 (4), 72 (1999).]

20. David E. Meltzer and Thomas J. Greenbowe, Investigation of Learning Difficulties in Thermodynamics for Physics and Chemistry, at the Winter Meeting of the American Association of Physics Teachers, Kissimmee, Florida, January 17, 2000. [AAPT Announcer 29 (4), 65 (1999).]

19. Jack A. Dostal and David E. Meltzer, Investigating Student Difficulties with Concepts of Gravitation, at the Winter Meeting of the American Association of Physics Teachers, Kissimmee, Florida, January 17, 2000. [AAPT Announcer 29 (4), 65 (1999).]

18. David E. Meltzer and Thomas J. Greenbowe, Development of Active-Learning Curricular Materials in Thermodynamics for Physics and Chemistry (Miller Faculty Fellowship Project), poster presentation at Iowa State University Faculty Forum, November 15, 1999.

17. David E. Meltzer and Thomas J. Greenbowe, Active-Learning Curricula for Thermodynamics in Physics and Chemistry, at the Fall Meeting of the Illinois and Iowa Sections of the American Association of Physics Teachers, Rock Island, Illinois, October 30, 1999.

16. Jack Dostal and David E. Meltzer, Investigating Student Difficulties with Concepts of Gravitation, at the Fall Meeting of the Illinois and Iowa Sections of the American Association of Physics Teachers, Rock Island, Illinois, October 30, 1999.

15. David E. Meltzer, Addressing Learning Difficulties with Circuits: An "Aufbau" Approach, at the 1999 Physics Education Research Conference, San Antonio, Texas, August 7, 1999.

14. Jack A. Dostal and David E. Meltzer, Investigating Student Difficulties with Concepts of Gravitation, or: "Do You Understand the Gravity of this Situation?" at the 1999 Physics Education Research Conference, San Antonio, Texas, August 7, 1999.

13. David E. Meltzer, Addressing Learning Difficulties with Circuits: An "Aufbau" Approach, at the Summer Meeting of the American Association of Physics Teachers, San Antonio, Texas, August 6, 1999. [AAPT Announcer 29 (2), 82 (1999).]

12. Jack A. Dostal and David E. Meltzer, Investigating Student Difficulties with Concepts of Gravitation, or: "Do You Understand the Gravity of this Situation?" at the Summer Meeting of the American Association of Physics Teachers, San Antonio, Texas, August 6, 1999. [AAPT Announcer 29 (2), 120 (1999).]

11. Jack Dostal and David E. Meltzer, Investigating Student Difficulties with Concepts of Gravitation, or: "Do You Understand the Gravity of this Situation?" at the Spring Meeting of the Iowa Section of the American Association of Physics Teachers, Ames, Iowa, April 24, 1999.

10. David E. Meltzer, Learning Difficulties and Teaching Strategies Related to Electric Circuits, at the Spring Meeting of the Iowa Section of the American Association of Physics Teachers, Ames, Iowa, April 24, 1999.

09. David E. Meltzer, Physics Education: Research and the Road to Reform, Science Education Seminar, Iowa State University, March 12, 1999.

08. Kandiah Manivannan, Monica K. Ballay and David E. Meltzer, Use of Interactive Multiple Representations in Promoting Student Understanding of Physics in Active Learning Environments, at the 73rd Annual Meeting of the Louisiana Academy of Sciences, Monroe, Louisiana, February 5, 1999.

07. Kandiah Manivannan, Monica K. Ballay and David E. Meltzer [joint presentation], Use of Multiple Representations in an Active Learning Environment to Increase Student Learning, at AAPT Winter Meeting, Anaheim, California, January 13, 1999 [AAPT Announcer 28 (4), 97 (1998)].

06. David E. Meltzer, Are There "Hidden Variables" in Students’ Initial Knowledge State Which Correlate with Learning Gains?, at AAPT Winter Meeting, Anaheim, California, January 12, 1999 [AAPT Announcer 28 (4), 81 (1998)].

05. David E. Meltzer, Active and Inter-Active Learning in the Physics Classroom, at the Iowa Science Teachers Section Fall Conference, Des Moines, Iowa, October 22, 1998.

04. David E. Meltzer, Physics Education Research: A New Subfield of Physics, Science Education Seminar, Iowa State University, September 1998.

03. David E. Meltzer, Iowa State University Physics Education Research Group, presentation during session on "Research and Development Projects We Are Now Doing" at the 1998 Physics Education Research Conference, Lincoln Nebraska, August 1, 1998. [PERConference 98: Physics Education Research Conference Proceedings, August 1-2, 1998, compiled by Thomas C. Koch and Robert G. Fuller (University of Nebraska, Lincoln, Nebraska, 1998), p. 173.]

02. David E. Meltzer, "Hidden Variables" in Conceptual Diagnostic Pretest Data?, at the 1998 Physics Education Research Conference, Lincoln, Nebraska, August 1, 1998. [PERConference 98: Physics Education Research Conference Proceedings, August 1-2, 1998, compiled by Thomas C. Koch and Robert G. Fuller (University of Nebraska, Lincoln, Nebraska, 1998), p. 212.]

01. David E. Meltzer, Creating an Active-Learning Environment in Large-Enrollment Physics Classes, at the conference on "Shaping the Future of Undergraduate Science, Math, Engineering, and Technology Education," sponsored by the National Science Foundation, Lincoln, Nebraska, May 28-30, 1998.