Creating & Assessing Performance-Based Curriculum Projects: A Teacher's Guide to Project-Based Learning & Performance Assessment
Janet Caudill Banks. Cats Publications: 1997.

Creative Controversy: Intellectual Challenge in the Classroom (3rd edition)
David W. Johnson and Roger T. Johnson. Interaction Book Company: 1995.

How to Use Problem-Based Learning in the Classroom
Robert Delisle. Association for Supervision & Curriculum Development: 1997

Problem-Based Learning & Other Curriculum Models for the Multiple Intelligences Classroom
Robin Fogarty. SkyLight Professional Development: 2001

Problems as Possibilities: Problem-Based Learning for K-16 Education (2nd Edition)
Linda Torp, Sara Sage. Association for Supervision & Curriculum Development:2002

Real-Life Problem Solving: A Collaborative Approach to Interdisciplinary Learning
Beau Fly Jones (Ed.), Claudette M. Rasmussen (Ed.), Mary C. Moffitt (Ed.), American Psychological Association (APA): 1997

Student-Generated Rubrics: An Assessment Model to Help All Students Succeed (Assessment Bookshelf.)
Larry Ainsworth, Jan Christinson. Pearson Learning: 1998

The Internet and Problem-Based Learning: Developing Solutions Through the Web
William, J. Stepien, Peter R. Senn, William C. Stepien. Zephyr Press: 2001

The Teaching of Thinking and Problem Solving
R.J. Sternberg (Ed.), Academic Press: 1994

Brown, J.S., Collins, A., & Duguid, P. (1989). Situated cognition and the culture of learning. Educational Researcher, January-February, 32-42

Okuda, S.M., Runco, M. A., & Berger, D.E. (1991). Creativity and the finding and solving of real-world problems. Journal of Psychoeducational Assessment, 9, 45-53

Cooperative Learning Center of the University of Minnesota
http://www.clcrc.com/
This Web site describes the history and mission of the Cooperative Learning Center, with a question and answer section and a collection of essays by cooperative learning experts.

Holistic Critical Thinking Scoring Rubric
http://www.insightassessment.com/pdf_files/rubric.pdf
Critical thinking is an important aspect of the PBL process; this rubric is helpful in assessing student performance in this area.

IMSA Center for Problem-Based Learning
http://www.imsa.edu/team/cpbl/whatis/whatis/slide6.html
At this site you can find a tutorial introduction to PBL, sample problems, downloadable articles, and a list of resources.

PBL and Teacher Training at Augusta State University
http://www.aug.edu/teacher_development/
PBL/PBL/Childhood_Units.htm
This site has PBL lesson plans for early elementary school grades.

Problem-Based Learning: How to Gain the Most from PBL
http://chemeng.mcmaster.ca/pbl/pbl.htm
This is a book by Donald Woods that can be downloaded in its entirety in PDF format.

The Problem Log
http://www.imsa.edu/team/cpbl/pbln/log.html
Back issues of The Problem Log, the Problem-Based Learning Network's newsletter, are available in PDF format online.

USC California Science Project
http://www.usc.edu/hsc/dental/ccmb/usc-csp/indexmain.html
The USC California Science Project Web site contains examples of K--12 PBL problems in science, a downloadable graphic illustrating the PBL process, and a PBL lesson plan sample.

University of Delaware's Problem-Based Learning
http://www.udel.edu/pbl
The University of Delaware's PBL site has articles, sample problems, and a PBL clearinghouse.