1. Open Source Physics Content Delivery: Computation, Curriculum, and Libraries NSDL, November 18, 2009 Bruce Mason, University of Oklahoma Wolfgang Christian Davidson College Francisco Esquembre, University of Murcia, Spain Mario Belloni, Davidson College OSP is supported by NSF grant s DUE-0442581 and 0937836. ComPADRE is supported by NSF grants DUE- 0226129, 0532798 Opinions expressed here are not those of the NSF. Celestial sphere model.

2. Contemporary Physics Education “A curriculum in which computation is absent or plays a minor role is inauthentic to the contemporary discipline. This absence is one of the most striking examples of our failure to update the curriculum.” B. Sherwood 2 “Tripartite” Learning Platform Solution:  Open Source Physics (OSP) Java code library and tools. Open Source Physics  Easy Java Simulations (EJS) simplified java modeling tool Easy Java Simulations  ComPADRE NSDL pathway for Physics & Astronomy ComPADRE

3. Pedagogic Advantages of Modeling Students are actively involved in the PHYSICS. Modeling is exploratory, like labs. Modeling engages students predicting phenomena. Computer modeling allows exploration of complex problems, visualization, and communication. Modern science involved experiment, theory, and modeling. 3

4. The Falling Slinky model. What happens to the bottom when it begins its fall?Falling Slinky  The bottom end will move up initially.  The bottom end will move down initially.  The bottom end will remain at the same point for a short time before it begins to move. The Falling Cup and Ball model.Falling Cup and Ball The Colliding Galaxy model.Colliding Galaxy Modeling Examples 4

5. Ideal Solution The ideal solution would be to get a simulation that:  Is ready to run (for a first impression)  Is modular  Does not require non-standard, heavy-weight software  Can be inspected in an accessible way  Can be downloaded and used locally  Can be modified (and re-run)  Can be localized (translated to your language)  Has been peer-reviewed (quality control)  Has been used by other teachers  Is absolutely free  Is intellectually traceable  (Add your own requirement…) 5

6. The philosophy of Easy Java Simulations Good educational software needs to be adoptable and adaptable. Edward Redish in the Foreword to “Physlets” 6 Francisco Esquembre, University of Murcia http://www.um.es/fem/EjsWiki/ Power to the People!

7. Results Teachers NOT Java programmers  Todd Timberlake (Davidson College, NC) Phases of the moon Phases of Venus  Anne J Cox (Eckerd College, FL) Generator Falling loop Adoptable, Adaptable, and UNDERSTANDABLE  Download, Right Click, Go! 7

8. Connections through the Library “We got out of the business of web hosting and let the experts do it” 8 Standard and Custom Library and Web Services Connections to Users and NSDL 350 Resources hosted by ComPADRE 1700 users per week

9. 9 Library Information

10. 10 Personalization Content … Find Collect Sort Relate Annotate Share

11. 11 Online Textbook Supplements

12. EJS Digital Library Client Direct access to Library Content Download catalog of models: > 160 EJS models ~31,000 downloads per month Small download of information to run EJS models Access available to other EJS Libraries 12

13. ComPADRE Catalog Web Service 13

14. 14 With Special Thanks to… OSP Developers: Doug Brown, Mario Belloni, Anne Cox, Harvey Gould, Jan Tobochnik, Fu Kwan Hwang Tech: Lyle Barbato, Caroline Hall, Matt Riggsbee Evaluation: Jenny Rempel, Cecilia Brown, Flora McMartin Co-PI’s: Susana Deustua, Bo Hammer, Jack Hehn, Warren Hein, Ted Hodapp, Gary White

15. The comPADRE OSP Collection www.compadre.org/osp www.um.es/fem/Ejs/ 15