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Characteristics Needed in College Graduates. High level of communication skills Ability to define problems, gather and evaluate information, develop solutions Team skills -- ability to work with others Ability to use all of the above to address problems in a complex real-world setting.
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Characteristics Neededin College Graduates High level of communication skills Ability to define problems, gather and evaluate information, develop solutions Team skills -- ability to work with others Ability to use all of the above to address problems in a complex real-world setting Quality Assurance in Undergraduate Education (1994) Wingspread Conference, ECS, Boulder, CO.
What Is PBL? “The principal idea behind PBL is that the starting point for learning should be a problem, a query, or a puzzle that the learner wishes to solve.” Boud, D. (1985) PBL in perspective. In “PBL in Education for the Professions,” D. J. Boud (ed); p. 13.
PBL Contrasted with Subject-Based Learning START From Smith et al, 2005. Pedagogies of engagement: Classroom-based practices. J. Engineering Education, January 2005. 87-101. Given problem to illustrate how to use it Told what we need to know Learn it
PBL Contrasted with Subject-Based Learning START Apply it Problem-posed Learn it Identify what we need to know From Smith et al, 2005. Pedagogies of engagement: Classroom-based practices. J. Engineering Education, January 2005. 87-101.
What are the CommonFeatures of PBL? Learning is initiated by a problem. Problems are based on complex, real-world situations. All information needed to solve problem is not given initially. Students identify, find, and use appropriate resources. Students work in permanent groups. Learning is active, integrated, cumulative, and connected.
Deflating Grady – Part 1 Read over the e-mail exchange and discuss the ideas it raises about grade inflation As a group, compose a definition of grade inflation and be prepared to present it on the poster paper provided. Be prepared to “report out” in 10 minutes
Deflating Grady – Part II Read over the information presented, and be prepared to report out on your responses to questions 1 & 2: Be prepared to “report out” in 10 minutes
PBL: The Process Resolution of Problem; (How did we do?) Presentation of Problem Next stage of the problem Organize ideas and prior knowledge (What do we know?) Integrate new Information; Refine questions Pose questions (What do we need to know?) Reconvene, report on research; Research questions; summarize; analyze findings Assign responsibility for questions; discuss resources
Types of Learning Objectives Content-oriented: subject specific • Basic knowledge and understanding of specific concepts, techniques, etc. in the discipline Process-oriented: global skills • Effective communication: oral and written • Acquiring and evaluating information • Working effectively with others • Higher order, critical thinking
Medical School Model Dedicated faculty tutor Groups of 8-10 Very student-centered environment Group discussion is primary class activity A good choice for: Highly motivated, experienced learners Small, upper-level seminar classes
Typical Medical School PBL Problem: High Degree of Authenticity Patient arrives at hospital, ER, physician’s office presenting with symptoms X, Y, Z What questions should you ask? What tests should you order? Physician interviews patient, receives results of tests Differential diagnosis Preferred therapy
“Hybrid” PBL Non-exclusive use of problem-driven learning in a class May include separate lecture segments or other active-learning components Floating or peer facilitator models common Often used as entry point into PBL in course transformation process
The Problem-Based Learning Cycle – Hybrid Model Assessments Overview Problem, Project, or Assignment Mini-lecture (as needed) Group Discussion Whole Class Discussion Preparation of Group “Product” Research Group Discussion
Introductory Biology – An Example for Small Enrollment Courses Course is one section of multi-section 2-semester survey course for science and allied health majors 6-7 PBL problems per semester Session time ranges from 75 - 120 min. PBL activities comprise 85-90% of total course time 4-5 student groups of up to 6 students 1 peer facilitator (junior or senior) per group (same model also used in upper division bio course)
General Chemistry: An Example of a Hybrid Model Problem-based group work 40% Lecture/ whole-class discussion 50% Demonstrations 7% Other (Exam, lab review) 3% Source: Susan Groh, Ph. D., Department of Chemistry & Biochemistry, University of Delaware
Overview of Additional Models Biology 4 problems per semester (2 ½ periods each) 2 lecture days, 1 PBL day per week Criminal Justice 1 two-week problem on important course content Many courses PBL activities in discussion, lab
Question for Groups Reflect on this morning’s experience, or on prior experience with PBL: What role do instructors play in a PBL course? Be prepared to report out in 5-10 min.
PBL Models for Undergraduate Courses Medical School Model Small class, one instructor to 8-10 students Floating Facilitator Model Small to medium class, one instructor, up to ~75 students Peer Facilitator Model Small to large class, one instructor and several peer facilitators Large Class Models Floating facilitator and hybrid PBL/other activities
Peer Facilitator Model Advanced undergraduates serve as facilitators Help monitor group progress and dynamics Serve as role models for novice learners Capstone experience for facilitator Instructor’s role Gives orienting lectures Leads whole class discussions Works with facilitators behind the scenes
Strategies Typically Used to Teach A PBL Problem • “Mini” lecture to introduce problem • Instructor provided input at regular intervals • Mechanism for groups to compare notes • Instructor circulated amongst the groups • Instructor provided some resources • Problem constructed to allow for 1-5 • Problem constructed to provide learner prompts for PBL novices
Common Strategies for Monitoring Groups • Set the stage early • Form heterogeneous groups • Use permanent groups • Rotate roles of responsibility • Rely on group-selected ground rules • Conduct peer evaluations
Good PBL Problems… • Relate to real world, motivate students • Require decision-making or judgments • Are multi-page, multi-stage • Are designed for group-solving • Pose open-ended initial questions that encourage discussion • Incorporate course content objectives, higher order thinking, other skills
Getting Started with Development of PBL Materials: Course Specifics
Identify 1-2 major learning objectives that you want to address through a problem - consider both content concepts and process skills. Identify a real-world context or application of those concepts. (Steps 1 and 2 may be reversed.) Develop a scenario or story to set the stage. Begin drafting the problem by outlining the first page. Provide a brief synopsis of what the rest of the problem will look like: other stages, products, etc. Problem Writing Exercise
Problem Sources and Strategies • News events, articles • Popular or scholarly press in the discipline • Authentic tasks, roles, etc. as triggers • Case studies • Adaptation of text problems or questions
Source Example:Authentic Tasks • Trigger: discussion of National Film Preservation Act • Problem: choose a film to nominate for inclusion in the National Film Registry • Task: prepare a critical analysis of the film and submit a persuasive nomination to the Library of Congress. • Concepts introduced: theories and strategies of film analysis, development of evaluative criteria PBL Clearinghouse Problem submitted by Bryan Johnson, Samford University, 2001
Source Example: Textbook Problems • Physics concept: conservation of momentum • Text examples: colliding pool balls, car collisions A 1200-kg car traveling east with a speed of 10 m/s collides at an intersection with a 1500-kg van traveling north at a speed of 12 m/s. Find the direction and magnitude of the velocity of the wreckage after the collision, assuming that the vehicles undergo a perfectly inelastic collision (ie, they stick together).
Source Example: Textbook Problems • Problem: students, in role of police officer, must determine culpability in fatal car crash based on data (disclosed progressively) from actual police accident report. Assumptions/approximations required; different choices lead to different conclusions. PBL Clearinghouse Problem Submitted by Barbara Duch, 2001
UD PBL Online PBL at UD - www.udel.edu/pbl Sample PBL materials, including syllabuses; links to other sites PBL Clearinghouse - www.udel.edu/pblc Database of peer-reviewed PBL problems ITUE – www.udel.edu/inst Workshops on PBL and integration of technology, communication skills