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Pbl why and how keynotelaplata 4_9_2012


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  • This was part of our motivation 17 years ago.
  • Here’s a more current statement of what defines contemporary literacy—from English teachers’ perspective.
  • And here is an engineers’ perspective—what’s important in terms of accreditation requirements for new engineers in workforce.
  • Steve gets us to this slide, introduces it briefly. . . . Meredith’s notes: End of chapter. What is the value of such a problem? Students are asked to apply one or more concepts they’ve learned . . . gravitation and resulting forces. What processes does the student step through to solve this? ID type of problem (graviational force), look for correct equations (F=Gm1m2/r2), calculate and answer. Is this what we would call “problem solving” in the broad sense of the term? Ability to solve for net force on a sphere in a highly confined scenario is unlikely to be relevant to the student’s future career needs. Students have little input into the process by which problem is solved, other than correctly IDing problem type.
  • Meredith’s notes: Students are informed. “Problem” on last slide also follows a standard instructional pattern by which the student learns how to ID a problem type, and which usually begins with a lecture. We all do this kind of teaching at some point, but how reflective of one’s professional life is this environment? From blog posting for college-bound students titled “Figuring out the college lecture.”
  • A graphical depiction of pathway to “end of chapter” problems. At what point is student in control of the course of their learning process?
  • To be more efficient, I folded two ideas into one. . . Problem type not initially clear. Students have to determine what variables are involved, and how they might change due to parameters provided. Aside from realistic parameters similar to those for a “consulting” job, students have control and responsibility for developing the problem’s solution. More than one answer could be acceptable, depending on groups’
  • Students often become very invested in the problem, if well-written. Students want to know the answer, and therefore want to work to find it.
  • Meredith
  • Meredith
  • Mark
  • Mark
  • Mark – reference first 3 slides as well
  • Slide to emphasize where both process & content skills are needed. Differential diagnosis is structured problem solving where multiple possibilities are in play. It is a process of elimination of alternatives.
  • Putting a problem in front of the audience for consideration. Interest compounds, so exponential calculations are necessary to get this accurate. But it is rough and ready as an estimate.
  • 6
  • Mark to Steve
  • Answer the previous question.
  • My example—for a writing course…
  • Steve to Mark
  • [email_address] 1252steve
  • Mark
  • Transcript

    • 1. Problem-based Learning:Challenges, Components, and Benefits Stephen A. Bernhardt
    • 2. 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 settingQuality Assurance in Undergraduate Education (1994)Wingspread Conference, ECS, Boulder, CO.
    • 3. 21st Century Literacies • Develop proficiency with the tools of technology • Build relationships with others to pose and solve problems collaboratively and cross-culturally • Design and share information for global communities to meet a variety of purposes • Manage, analyze and synthesize multiple streams of simultaneous information • Create, critique, analyze, and evaluate multi- media texts • Attend to the ethical responsibilities required by these complex environmentsNational Council of Teachers of English, Feb. 15, 2008
    • 4. Employers’ Ratings of Importance of ABET Outcomes for New HiresFigure 8. Executive Summary, Engineering Change: A Study of the Impact ofEC2000. ABET, 2006, p. 11
    • 5. But I already assign problems . . .From Cutnell & Johnson, Physics, 1989, p. 93.
    • 6. And students have to learn before they can solve problems . . .
    • 7. PBL Contrasted with Subject-Based Learning START Solve problem to demonstrate mastery Told what we need to know “Learn it” = read book, remember key formulae, etc.From Smith et al., 2005. Pedagogies of engagement: Classroom-basedpractices. J. Engineering Education, January 2005. 87-101.
    • 8. PBL begins with a problem . . . a different kind of problem • Major League Baseball (MLB) is looking to sell the Montreal Expos, which it currently owns. Competitive bids have been submitted by two Mexican cities, Mexico City and Monterrey. Prior to making a decision, MLB has asked your consulting firm to evaluate the effect that altitude would have on a fly ball in these two baseball stadiums . . .PBL Clearinghouse “What a Drag!,” by Ed Nowak
    • 9. PBL Contrasted with Subject-Based Learning START Apply it while Problem-posed solving problem Learn what we Identify what we need to know need to knowFrom Smith et al., 2005. Pedagogies of engagement: Classroom-basedpractices. J. Engineering Education, January 2005. 87-101.
    • 10. PBL is based on the Learning Cycle Students apply Problem posed concepts in their solution Learning issues identified Students construct understanding of issues
    • 11. Learning cycles enhance retention explore  invent  apply EIA = Explore, Invent, Apply IVP = Inform, Verify, Practice EAI = Explore, Apply, InventJ. Chem. Educ. 2011, 88, 1020–1025
    • 12. PBL: The ProcessResolution of Problem; Presentation of Problem(How did we do?) Organize ideas and Integrate new Next stage of the problem prior knowledge Information; (What do we know?) Refine questions Pose questions (What do Reconvene, report we need to know?) on research; Research questions; Assign responsibility summarize; for questions; discuss analyze findings resources
    • 13. But I have to cover content…
    • 14. Balancing Course Objectives Tackle hard decisions about course content • What content is essential? • What is needed in subsequent courses? • What knowledge is lasting? Don’t overlook process skills •Which skills are most important to your goals? •Can content and process go hand-in-hand? Learning Content Developing Process Skills
    • 15. 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
    • 16. The Rule of 72 Bill is working at a financial services firm as a summer intern. Stan, the area director, calls him into his office. Stan: One of our analysts is using the Rule of 72 to give predictions to our customers on how fast their money would grow. I’m concerned that this could get us in trouble. I’d like your recommendation on whether or not we should continue to use the rule to give estimates to our clients. Have your recommendations on my desk tomorrow. Bill: Um, sure….Mark A. Serva, University of Delaware
    • 17. 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
    • 18. Advanced Undergraduates as Peer Facilitators • Help monitor group progress and dynamics • Serve as role models for novice learners • Instructor works with facilitators behind the scenes
    • 19. “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
    • 20. General Chemistry: Hybrid Model Example 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
    • 21. So what does the teacher do?
    • 22. A Typical Day in an Undergraduate PBL Course
    • 23. Instructor roles • Establish learning goals • Create great problems • Keep teams on track • Present information as needed • Evaluate outcomes • Encourage reflective learning and transfer
    • 24. What Makes a Good PBL Problem?• Well-formed learning objectives for content and process• The need for a solution, decision, or recommendation• A “hook” or human scenario• Good prompting questions (“What do we know?” “What do we need to know?”)• Need for research• Thoughtful staging/selective disclosure• Summative and formative assessment
    • 25. Technologies for Haiti Relief • Problem: Propose a technology to address pressing issues in Haiti post-earthquake • Research: Students research situation in Haiti and available technologies (shelter, clean water, construction, communication) • Deliverables: Proposal, progress report, technical briefing, document for wider audience, presentationSteve Bernhardt, Technical Writing, UD
    • 26. PBL supports communication skills• Discussion to define, analyze, evaluate• Writing to set rules, assign tasks, manage team• Reading to learn what is needed• Speaking and writing to present findings, solutions, recommendations• Writing and discussing to evaluate and reflect
    • 27. Can we assess teamwork and problem solving?
    • 28. Assessment in PBL • Evaluate knowledge, skills, behaviors, and applied learning • Use both formative feedback and summative evaluation • Assess performance and deliverables • Use self and peer evaluation • Assess both teamwork and individual learning
    • 29. Common Features 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.
    • 30. Course Transformation: A Balancing Act Learning Classroom Control Objectives Course Format Assessment Problem Design
    • 31. Interested in learning more?• Google PBL@UD• Visit and register for the PBL Clearinghouse• Find a colleague who wants to collaborate• Try a low stakes problem to get started on a unit• Watch for workshops• Ask me!
    • 32. PBL: The ProcessResolution of Problem; Presentation of Problem(How did we do?) Organize ideas and Integrate new Next stage of the problem prior knowledge Information; (What do we know?) Refine questions Pose questions (What do Reconvene, report we need to know?) on research; Research questions; Assign responsibility summarize; for questions; discuss analyze findings resources
    • 33. Assessing PBL• Group problem on exams • Preparation of concept (in class or take home) maps• Grade product from PBL • Authentic reports to outside problem “authority”• Ask questions related to • Student construction or PBL problem on exam critique of rubrics• Tasks integrating • Student construction or communication, thinking critique of problems skills with content • Evaluation of group process• IF-AT scratch-off forms ( and individual ) contributions (by group and instructor)Many traditional assessment tools are still appropriate in PBL.