Daily Quiz
Three challenges from the archive
One easy quiz, one medium quiz, one hard quiz. The same daily ritual in French and English.
July 27, 2026
Geometry: Units, Areas, and Angles
Connect measurement arithmetic to elementary geometric facts.
Geometry: Composite Areas and Angle Relations
Use arithmetic structure to reason about composite figures and angles.
Geometry: Scaling and Invariants
Distinguish scale-dependent quantities from Euclidean invariants.