All Stories

  1. Designing and Implementing Skill Tests at Scale: Frequent, Computer-Based, Proctored Assessments with Minimal Infrastructure Requirements

    Article • February 2026, ACM (Association for Computing Machinery)

    Sam Lau

  2. Improving LLM-Generated Educational Content: A Case Study on Prototyping, Prompt Engineering, and Evaluating a Tool for Generating Programming Problems for Data Science

    Article • February 2026, ACM (Association for Computing Machinery)

    Jiaen Yu, Sam Lau

  3. How Novices Use Program Visualizations to Understand Code that Manipulates Data Tables

    Article • February 2025, ACM (Association for Computing Machinery)

    Sam Lau

  4. "I'm not sure, but...": Expert Practices that Enable Effective Code Comprehension in Data Science

    Article • February 2025, ACM (Association for Computing Machinery)

    Sam Lau

  5. Beyond the Hype: A Comprehensive Review of Current Trends in Generative AI Research, Teaching Practices, and Tools

    Article • January 2025, ACM (Association for Computing Machinery)

    Sam Lau, Dr. Natalie Kiesler, Juho Leinonen

  6. How Instructors Incorporate Generative AI into Teaching Computing

    Article • July 2024, ACM (Association for Computing Machinery)

    Sam Lau, Juho Leinonen, Dr. Natalie Kiesler

  7. From "Ban It Till We Understand It" to "Resistance is Futile": How University Programming Instructors Plan to Adapt as More Students Use AI Code Generation and Explanation Tools such as ChatGPT and GitHub Copilot

    Article • August 2023, ACM (Association for Computing Machinery)

    Sam Lau

  8. Teaching Data Science by Visualizing Data Table Transformations: Pandas Tutor for Python, Tidy Data Tutor for R, and SQL Tutor

    Article • June 2023, ACM (Association for Computing Machinery)

    Sam Lau

  9. Codehound: Helping Instructors Track Pedagogical Code Dependencies in Course Materials

    Article • November 2022, ACM (Association for Computing Machinery)

    Sam Lau

  10. The Challenges of Evolving Technical Courses at Scale: Four Case Studies of Updating Large Data Science Courses

    Article • June 2022, ACM (Association for Computing Machinery)

    Sam Lau

  11. How Computer Science and Statistics Instructors Approach Data Science Pedagogy Differently

    Article • February 2022, ACM (Association for Computing Machinery)

    Sam Lau

  12. TweakIt: Supporting End-User Programmers Who Transmogrify Code

    Article • May 2021, ACM (Association for Computing Machinery)

    Sam Lau

  13. Experiment Reconstruction Reduces Fixation on Surface Details of Explanations

    Article • June 2019, ACM (Association for Computing Machinery)

    Sam Lau