Occasional essays on computer science education and teaching at scale, usually grounded in data from CS 128.

A Course's Drop Number Does Not Tell the Complete Story

A significant share of students who dropped were earning passing grades, and many of them were earning A's.

Unpacking the Autograder: What Test Case Data Reveals About Student Learning

Analyzing 1.4 million test case outcomes to understand where students struggle, how they recover, and what they break along the way.

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