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George Watson ghw@udel.edu www.physics.udel.edu/~watson Problem-Based Learning and Wireless Technology in the Science Classroom George Watson ghw@udel.edu.

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Presentation on theme: "George Watson ghw@udel.edu www.physics.udel.edu/~watson Problem-Based Learning and Wireless Technology in the Science Classroom George Watson ghw@udel.edu."— Presentation transcript:

1 George Watson ghw@udel.edu www.physics.udel.edu/~watson
Problem-Based Learning and Wireless Technology in the Science Classroom George Watson Department of Physics and Astronomy College of Arts & Science University of Delaware 125th National AAPT Meeting Boise, Idaho Monday, August 5, 2002

2 Problem-Based Learning and Wireless Technology in the Science Classroom
Part 1. Advances in Technology Part 2. Advances in Pedagogy Part 3. Need for Wireless Solution Part 4. Applications of Wireless

3 gigabytes and gigahertz
The Way It Was 2002 graphing calculators, laptops, gigabytes and gigahertz Computation

4 wireless connectivity
The Way It Was 2002 , voic , chatrooms, FAX, pagers, cell phones, PDAs instant messaging, wireless connectivity Communication

5 2002 Collections The Way It Was... 1973 Online Information:
web catalogs, networked databases, Britannica Online, online newspapers, course websites, CMS Collections

6 Shifting Sand: Impacts of Technology in Higher Education
Computation and Calculation Communication and Collaboration Collections and Connections Wireless

7 Shifting Sand: Impacts of Wireless Technology in Higher Education
Anytime, Anyplace Access to Info Active Learning and Simulations In-class Interactivity (anonymous) CMS’s and Online Collaborations

8 Problem-Based Learning and Wireless Technology in the Science Classroom
Part 1. Advances in Technology Part 2. Advances in Pedagogy Part 3. Need for Wireless Solution Part 4. Applications of Wireless

9 The question before us:
Given the amazing advances in technology, the dramatic change in the first-year experience, and knowing what we know about our students, How can we best proceed in our classrooms?

10 The principal idea behind PBL is…
One possible answer: Problem-Based Learning 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. (Bould, 1985:13)

11 What is Problem-Based Learning?
PBL is an instructional method that challenges students to “learn to learn,” working cooperatively in groups to seek solutions to real world problems. PBL prepares students to think critically and analytically, and to find and use appropriate learning resources.

12 What are the common features of PBL?
Learning is initiated by a problem. Problems are based on complex, real-world situations. Information needed to solve problem is not initially given. Students identify, find, and use appropriate resources. Students work in permanent groups. Learning is active, integrated, cumulative, and connected.

13 PBL: The Process Students are presented with a problem. They organize ideas and previous knowledge. Students pose questions, defining what they know and do not know (learning issues). Students assign responsibility for questions, discuss resources. Students research learning issues. Students reconvene and explore newly learned information, refine questions.

14 The Problem-Based Learning Cycle
Overview Problem, Project, or Assignment Mini-lecture Group Discussion Whole Class Discussion Preparation of Group “Product” Research Group Discussion

15 Problem-Based Learning and Wireless Technology in the Science Classroom
Part 1. Advances in Technology Part 2. Advances in Pedagogy Part 3. Need for Wireless Solution Part 4. Applications of Wireless

16 Interactive Student Response Systems

17 The principal idea behind PBL is?
A. PBL challenges students to learn to learn. B. Learning is initiated by a problem. C. Students work in permanent groups. Think/ pair/ share

18 Collaborative, reconfigurable workspace
Flexible furniture Flexible equipment

19

20

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22 Wireless Laptop Carts

23

24 Problem-Based Learning and Wireless Technology in the Science Classroom
Part 1. Advances in Technology Part 2. Advances in Pedagogy Part 3. Need for Wireless Solution Part 4. Applications of Wireless

25 Silicon, Circuits, and the Digital Revolution
SCEN103 at the University of Delaware

26 Broad Course Objectives:
Analyze simple electrical circuits to assess their function and effectiveness. State and describe fundamental scientific principles underlying modern electronic devices. Explain the basic operation of electrical circuits, simple semiconductor devices, and integrated circuits. Identify the contributions of science and technology to everyday life.

27 A Problem-Based Learning Approach to Simple Electrical Circuits
Incorporating PBL problems Other collaborative exercises Hands-on laboratory exercises

28 PBL #1 Crossed Circuits Energy = power x time
Two roommates argue about perceived use of electrical energy; one uses the hairdryer too much and the other showers too long. Who should pay more towards the utility bill? Energy = power x time

29 Power ratings of appliances
PBL #2 A San Francisco Treat Electrical wiring plans are formulated for a building conversion in San Francisco using floorplans from “This Old House”. Parallel circuits Household wiring Power ratings of appliances

30 Problem-Based Learning and Physics: Developing problem solving skills in all students
NSF DUE CCLI-EMD The problem-based learning (PBL) program initiated at the University for reforming undergraduate science teaching is being expanded beyond the University by the development of instructional models and materials made accessible to faculty worldwide through an online clearinghouse. The project is developing a database of problems, instructional models, evaluation tools, and web-based resources that effectively incorporate PBL across the content framework of introductory undergraduate physics courses. Materials are being collected and reviewed for a wide variety of introductory physics courses, for both science majors and non-science majors, across all levels of instruction and class enrollment. In addition to collecting existing problems and material, the project is implementing problem-writing workshops as an important element in developing the collection of PBL materials needed to cover the different curricula of physics at the college level. Selected clearinghouse problems will also be adapted to the high school setting.

31 Series and parallel combinations
Lab #3 Batteries and Bulbs Students work from the simplest possible circuit to the challenging circuit on the left and its companion on the right. Series and parallel combinations

32 Flash Circuit Simulator

33 Motivation for This Project
Anywhere, anytime accessibility to ‘lab’. Faster, cheaper ‘what if?’ changes. When hands-on experiences in a physical laboratory are not available, computer simulations are often the next best option. For some topics, computer simulations can provide an environment for active learning that is just as rewarding as the traditional laboratory.

34 Implementation of This Project
JavaScript and Java applets are often employed to implement computer simulations for learning that can be accessed over the web. Often overlooked are other software solutions that run from suitably configured web browsers -- Macromedia Flash is one such approach. We have created a simple circuit simulator written in Flash that provides an interactive experience for introductory students of electricity.

35 Features of the Circuit Simulator
The current version provides a prototyping workspace drag-and-drop selection of resistors and batteries multimeters that can be configured to display current and/or voltage for each circuit element wire cutters and wire to complete and reconfigure circuits to carry out simulated experiments. a written and audio introduction to its use.

36 Running a circuit simulation…

37 Demonstration (if time permits)

38 Problems We Encountered with the Wireless Classroom
Worries about loss of network security; Worries about loss of laptop computers; Worries about distracted students; Worries about status of batteries; Grin and bear it – a real issue with IT folks. Cabinet bolted to wall and diligent users. Laptop displays can be readily closed. Real – bought a bank of spare batteries.

39 George Watson ghw@udel.edu www.physics.udel.edu/~watson
Problem-Based Learning and Wireless Technology in the Science Classroom George Watson Department of Physics and Astronomy College of Arts & Science University of Delaware 125th National AAPT Meeting Boise, Idaho Monday, August 5, 2002

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