Available draft · two ninety-minute units · construction edition
Retain your own attempt before reading these worked solutions. Explain the reasoning, then solve a changed case without looking.
| Session | Notebook | Matching text | Purpose |
|---|---|---|---|
| A · 90 minutes | A: durable state store | Markdown | Construct, connect and explain |
| B · 90 minutes | B: interrupted migration | Markdown | Diagnose, repair and transfer |
Scroll horizontally to view columns.
Each notebook includes its own setup, first-principles introductions and supplied schema, and needs only Python's standard library. Use Google Colab (Python 3.12) or a local Python 3.12+ Jupyter kernel. No repository checkout, previous notebook kernel or live account is needed. Unit B can use an explicitly selected successful Unit A handoff; an invalid selected file refuses rather than substituting an answer.
Ninety minutes is the planned work allowance per unit. Actual completion time and understanding require classroom observation.
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