Innovating computer science education at the high school level through technology-enhanced PBL


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In this presentation we describe various features and scaffolds embedded in a Computer Science high school course that is supported by an online learning environment. To develop this course we followed a design-based research approach with problem-based learning as our underlying pedagogy. In collaboration with computer scientists, Computer Science teachers, and instructional designers, we sought to re-envision Computer Science instruction while creating an innovation that is flexible enough to adapt to local contexts without losing its essence.

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  • design/writing process and procedures – objectives > SME form > instructional designeractivating prior knowledgemultimedia richbig is beautifulsupport skills and knowledgeCreative commons images via Photopin.comYouTube/Vimeoacquired via blogs, partnerships, ourselvesoriginal videos - anchor videos, demonstrations, walkthroughsproblems w/ firewalls and bandwidthvernacularEmbeds and external linksfacilitate learner controlprovide interactivity (when possible)Example content page from: from:
  • Innovating computer science education at the high school level through technology-enhanced PBL

    1. 1. Thriving in our Digital WorldInnovating computer science education atthe high school level through technology- enhanced PBLGeorge Veletsianos, PhD Calvin Lin, PhD Gregory Russell Bradley Beth Learning Technologies Computer Science
    2. 2. Summary
    3. 3. The state of Computer Science in High School
    4. 4. CS Principles
    5. 5. Course overviewDual enrollment(CS for non-majors) PBLGoals Diversity
    6. 6. Problem-based learning modelKrajcik and Blumenfeld (2006)• learners are presented with a driving question or challenge,• develop a tangible end-product to address the question/challenge,• engage in authentic activities,• collaborate with others & work in groups,• use technology to engage in otherwise impossible activities.• teacher scaffolds
    7. 7. Course Design
    8. 8. Module example: Computers
    9. 9. Technology scaffolds
    10. 10. Common scaffolds learning management system collaborative administrative tools tools content management
    11. 11. Content pages
    12. 12. External resourcesopen-source tools e.g. Audacity e.g. Gimpcontentspecificapplets e.g. audio sampling e.g. binary finger counting
    13. 13. Custom-built scaffolds
    14. 14. Online narrative: Conspiracy Theory
    15. 15. e.g. Where’s Waldo computing? Computers are no longer relegated to the desktop. They are ubiquitous (everywhere). The image above is a random snapshot taken by photographer Donald Peterson of a busy New York City street. Can you locate 6 instances of computing in the image above?
    16. 16. e.g. CS Calendar
    17. 17. Ongoing research and development 3-year project Year 1: Design & Development (D&D)Year 2: D&D, implementation, evaluation, redesign Year 3: Evaluation
    18. 18. Thank you Questions & comments: veletsianos @ grussell @ Course and materials are openly available at: