Observed arrival · 2026-09-30
Cao Labs makes AP Macro graphs movable
An AP Macroeconomics study site built around interactive graph labs, practice, and an exam-score calculator.
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$Paid
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- AP Macroeconomics students and teachers
- Worth noticing
- The course map lists 113 labs, drills, and quizzes across six units and says they align with the College Board CED.
Field notes
The course map runs from scarcity and opportunity cost through foreign-exchange markets, with six AP Macro units and topic-level labels. A visible production-possibilities-curve demo offers “Constant OC” and “Increasing OC” controls; a separate calculator takes multiple-choice and free-response scores to project a 1–5. The page describes its materials as College Board CED-aligned, while only Unit 1 is explicitly identified as free without an account.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue