This document contains the proceedings of the 2001 Annual International Conference of the Association for the Education of Teachers in Science which was held in Costa Mesa, California, January 18-21, 2001. Papers include: (1) "An Elementary Preservice Teacher's Search for Solutions about the Evolution-Divine Creation Question: The Story of Tracy" (Larry D. Yore and Tracey Knopp); (2) "Stars: Evaluating the Use of Video Technology for Modelling Science Process Skills" (Kenneth P. King and Thomas E. Thompson); (3) "Site-Based Professional Development: Learning Cycle and Technology Integration" (Brian L. Gerber, Andrew J. Brovey, and Catherine B. Price); (4) "Professional Development as Inquiry: The Role of Formative Assessment in Professional Development" (Doris Ash, Karen Levitt, and Lin Tucker); (5) "A Comparative Analysis of Science Teacher Education in Global Communities" (Pamela Fraser-Abder); (6) "Infusing Technology to Enhance Science Lessons: Prospective Teachers as Action Researchers Learning to Teach for Conceptual Change" (M. Randall Spaid); (7) "Professional Development for Elementary School Teachers Working with Science Learning Outcomes" (Ken Appleton and Allan Harrison); (8) "Views of Nature of Science Questionnaire (VNOS): Toward Valid and Meaningful Assessment of Learners' Conceptions of Nature of Science (Fouad Abd-El-Khalick, Norm G. Lederman, Randy L. Bell, and Renee S. Schwartz); (9) "Thinking Reflectively Rather Than Reflexively: A Theoretical Framework for Portfolio Development in Teacher Education" (Christopher Andersen); (10) "Prospective Elementary Teachers' Use of an Online Communicative Tool: Implications for the Use of Technology in Science Teaching Preparation" (Lucy Avraamidou and Barbara Crawford); (11) "Inquiry-Based Research Published in 'I Wonder': The Journal for Elementary School Scientists (1999-2000)" (Michael E. Beeth and Tracy Huziak); (12) "Pre-Service Science and Mathematics Teachers as Cultural Agents: A Transformative Study" (Carolyn Butcher and Gilbert Valadez); (13) "Increased Science Achievement for Adolescent Girls" (Nancy Stubbs and Caryn Hoffman); (14) "What Do We Know about Students' Cognitive Conflict in the Science Classroom: A Theoretical Model of Cognitive Conflict Process" (Gyoungho Lee and Jaesool Kwon); (15) "Science and Language Links" (Zale A. Liu and Valarie L. Akerson); (16) "Learning Science through Reading: Fifth-Grade Students' Conceptualization of Observation and Inference" (Francis S. Broadway and Katherine Taillon); (17) "Does Being Wrong Make Kettlewell Wrong for Science Teaching?" (David Wyss Rudge); (18) "Integrating Technology into Teacher Preparation and K-12 Classrooms" (Vickie D. Harry and R. Elaine Carbone); (19) "Technology: Preservice Teachers' Preparation: Oil: Water" (Patricia D. Morrell and James B. Carroll); (20) "Using Electronic Classrooms and the World Wide Web to Support Science Teaching and Learning: Interactive Session Summary" (Paul Vellom, Marcia Fetters, and Michael Beeth); (21) "The Philosophy, Theory and Practice of Science-Technology-Society Orientations" (Chris Lawrence, Robert Yager, Scott Sowell, Elizabeth Hancock, Yalcin Yalaki, and Paul Jablon); (22) "Eighth-Grade African American Students' Sense-Making of Electricity" (Morgan C. Greene and Francis S. Broadway); (23) "Making Science Accessible: Strategies for Modifying Science Activities to Meet the Needs of a Diverse Student Population" (Marcia Fetters, Dawn Pickard, and Eric Pyle); (24) "An Environmental Education Needs Assessment of K-12 Teachers" (Yvonne Meichtry); (25) "Language Development and Science Inquiry: A Child-Initiated and Teacher-Facilitated Program" (Evelyn P. Klein, Penny L. Hammrich, Stephanie Bloom, and Anika Ragins); (26) "Examining Discourse in Elementary Science Methods: Differences between Science Content and Pedagogy" (William J. Newman, Jr., Paula D. Hubbard, and Sandra K. Abell); (27) "Science Work Experience Programs for Teachers: Refocusing Professional Development Using a Qualitative Lens" (Wendy M. Frazier); (28) "An Extension Analysis on the Self-Efficacy Beliefs about Equitable Science Teaching and Learning Instrument for Prospective Elementary Teachers" (Jennifer M. Ritter, William J. Boone, and Peter A. Rubba); (29) "Impact of Global School/University Partnerships on Science Teacher Enhancement" (Jack Hassard and Julie Weisberg); (30) "Learning Together: A Collaboration between Researcher and Classroom Teacher Using Inquiry-Based Instruction" (James T. McDonald); (31) "What Is Necessary to Include in a Science Methods Course for Teachers on Emergency Permits?-- The Role of the Feedback Portfolio" (Hedy Moscovici); (32) "Jumping onto the Portfolio Bandwagon: What Teachers Say about the Process" (Mary Stein); (33) "The Sisters in Science Program: A Three Year Analysis" (Penny L. Hammrich, Greer Richardson, and Beverly Livingston); (34) "Team: Staff Development and Mentoring for Urban Elementary Teachers, Preservice Teachers, and Students" (Kenneth King and Thomas Thompson); (35) "Science as a Way of Knowing: Using Reader Response as a Means to Construct a Personal Understanding of Science Literature" (Robert W. Blake, Jr. and Robert W. Blake); (36) "Getting to the Fourth Year" (Patricia R. Simpson, George Davis, Teresa Shume, David Cline, and Dorrie Tonnis); (37) "Profile Changes for Two Students in a (Mathematics, Science and Technology Education) Preservice Teacher Education Program with Constructivist Views of Teaching and Learning" (Youngsun Kwak and Michael E. Beeth); (38) "Sharing Our Strategies: A Role for Science Teachers" (Pamela Fraser-Abder and Nina Leonhardt); (39) "Sisters in Science: Using Sports as a Vehicle for Science Learning" (Penny L. Hammrich, Greer M. Richardson, Tina Sloan Green, and Beverly Livingston); (40) "Strategies Enabling Collaborative Teacher Teams to Develop and Implement Assessment of Student Understanding of Science" (Donna R. Sterling); (41) "The Bridges Project: Pairing Preservice and Inservice Teachers for Professional Development in Science, Math, and Literacy Using Performance Assessment Tasks as Contexts" (Valerie L. Akerson, Amy McDuffie, and Judith A. Morrison); (42) "Elementary Science Teacher Leadership (ESTL) Program: A Professional Development Model" (Marlene Thier and Herbert Thier); (43) "Secondary Science Teacher Candidates' Beliefs and Practices" (Deborah Waggett); (44) "Awakening the Scientist Inside: Global Climate Change and the Nature of Science in an Elementary Science Methods Course" (Juanita Jo Matkins and Randy Bell); (45) "Changes in the Philosophies of Teaching of Four Interns during the Internship Year" (Michael J. Wavering); (46) "From Practice to Theory--Narrowing The Gap: First Year Teachers Emerging from a Constructivist Science Education Program" (Michael Dias and Jack Hassard); (47) "Reconceptualizing a General Chemistry Curriculum Using a Standards-Based Approach to Instruction" (Warren J. DiBiase and Eugene P. Wagner); (48) "Documenting Strategies for Two Local Systematic Change Projects" (Larry D. Yore, James A. Shymansky, and John O. Anderson); (49) "Constructing Investigations: Collaborative Professional Development in Technology and Science Education" (Lawrence B. Flick, Walter Gamble, and Dick O'Connor); (50) University Science Majors in Collaborative Partnerships with Elementary Teachers: Inquiry Based Teaching and Learning" (Donna L. Ross and Cheryl L. Mason); (51) "The Relationship between Attitude toward Science and Enrollment in a 4x4 Block Schedule" (James E. Spellman and J. Steve Oliver); (52) "A Revised Introductory-Level College Science Course: Steps Toward an Inclusive Pedagogy" (Tarin H. Weiss); (53) Daughters with Disabilities: A Professional Development Model to Reframe Science, Math, and Technology Education for Girls with Disabilities" (Penny L. Hammrich, Lynda Price, and Graciela Slesaransky-Poe); (54) "The Levels of Accessibility Matrix System for Determining the Appropriateness of Hands-On Science Activities for Students with Disabilities" (E. Barbara Klemm and Joseph R. Laszlo); (55) "The Effects of an After-School Science Program on Middle School Female Students' Attitudes toward Science, Mathematics and Engineering" (Maria M. Ferreira); (56) "Science and Mathematics Professional Development at a Liberal Arts University: Effects on Content Knowledge, Teacher Confidence and Strategies, and Student Achievement" (Cynthia H. Greer); (57) "Sexuality Has a Place in the Science Classroom" (Anne-Marie Scholer); (58) "Drawing on Their Understanding: Using Illustrations to Invoke Deeper Thinking about Plants" (Shannan McNair and Mary Stein); (59) "Block Scheduling Science: Does It Help or Hinder?" (Donna L. Ross and Julie F. Westerlund); (60) "'Just in Time': An Alternative Pathway to Teaching (APT)" (Camille L. Wainwright); (61) "Issues in the Preparation of Teachers to Face the Challenge of the Black-White Achievement Gap in Science: 'I Love Your Questions, But We Have to Get Through This Stuff'" (Charles R. Ault, Jr. and Obed Norman); (62) "Stories From the Field: Challenges of Science Teaching and Learning through Interdisciplinary Approaches" (Katherine C. Wieseman, Hedy Moscovici, Turtle Moore, Jill van Tiel, and Esme McCarthy); (63) "The Genesis of Science Teaching in the Elementary School: The Influence of Student Teaching" (Lee A. Plourde); (64) "Goals 2000 and Action Research: A Viable Plan for Teachers" (David T. Crowther, Norman G. Lederman, Bob Curtis, and John R. Cannon); (65) "Three Non-Western European Student Teachers' Conceptions of Teaching Science to Adolescent English Language Learners" (J. Richard Pomeroy); (66) "Calibrated Peer Review in General Education Undergraduate Human Physiology" (Nancy J. Pelaez); (67) "The Space Exploration Team Inquiry Model: Linking NASA to Urban Education Initiatives" (Richard E. Shope III and Lloyd Chapman); (68) "Improving University Science and Engineering Instruction--A Case Study of an Environmental Engineering Lab Course" (Valarie L. Akerson, Victor F. Medina, and Nina Wang); (69) "Creating an Integrated Elementary Teacher Education Program: The Response of Nine California State University Campuses" (Laura Henriques, Amy Cox-Peterson, Bonnie Brunkhorst, Herb Brunkhorst, Barbara Burke, Alan Colburn, Teresa Crawford, Barbara Gonzalez, Barbara Hawkins, Cheryl L. Mason, John McGowan, Hedy Moscovici, Kathy Norman, Nancy Pelaez, Donna L. Ross, Gerry Simila, Ed Walton, and Robert Yamashita); (70) "Technology: A Link to the Mountains and Beyond, Discourse Practices in a Web Course for Elementary Science Teachers" (Kathleen S. Davis); and (71) "The Impact of Constructivist Instructional Methods on Preservice Teachers' Attitudes toward Teaching and Learning Science (Helen L. Gibson, James Bernhard, Aaron Kropf, and Georgena A. Van Strat). (YDS)