I’m proud to share @GregNN’s outstanding dissertation, “Teaching and Assessing Programming Language Tracing”! It contributes three things…
faculty.washington.edu/ajko/dissertat… A photograph of Amy Ko hood...
1. A new theory of PL knowledge.
It’s the first theory that accounts for how people use causal inference to build mapping of syntax to semantics, and can help predict and explain difficulties in learning to code. A table showing the transla...
2. The design of a PL tutor. This tool is so exciting! By offering an interactive way of rapidly building syntax/semantics causal inference mappings, students can robustly learn to trace programs in a PL in hours. A screenshot of PL tutor sh...
3. The design of precise formative assessments of PL knowledge, providing granular diagnostic insight into learner conceptions. Greg explored this for both PL syntax/semantics, as well as advanced CS topics that depend on such knowledge. A prompt for a tracing prob...
If these design ideas were deployed at scale in CS learning, I predict that PL learning would shift from one of the rockiest parts of learning to code to a seamless and quick first lesson in reading code, providing a strong foundation for learning to write it.
Congratulations @GregNN, I am so impressed by your work, your incredible intellect, and your passion for groundbreaking discovery! Greg with a captain’s hat a...

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More from @amyjko

8 Jul 20
For those who need a summary of the history behind the Harper’s letter calling for good faith debate, here’s a thread, presented in the form of a middle school conflict at recess. 1/N
Amy: Hi, I’m Amy. I’m trans.
Todd: Ug, gross, you’re an it, go away.
Amy: But... I’m not an it.
Todd: Yes you are.
Amy: No... I’m Amy, I’m a person.
Todd: I don’t think so. That’s just my opinion.
Amy: I don’t want to talk to you anymore.
Todd: [chases after Amy]
Todd: What, you think I’m wrong?
Amy: You are wrong. I’m a person.
Todd: Too scared to debate me?
Amy: No, I just think you’re being mean.
Todd: [Calls over his friends]
Todd: This it won’t talk to me.
Amy: Stop bothering me!
Todd: Should we make it talk to us?
Read 10 tweets

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