Observed arrival · 2026-09-02
Geometry Everywhere
An interactive geometry course that starts with familiar objects—a bridge cable, staircase, wheel, or football pitch—and works toward the equation.
Field notes
The lesson architecture keeps the real object visible underneath the abstraction: a bridge cable becomes a parabola, a staircase supplies rise and run, and a football pitch gives coordinates a practical reference frame. The homepage displays concrete mathematical examples, including y = a·x² for the cable and 35 / 60 = 0.58 for the staircase. A members-only section extends the approach to measuring a tree through its shadow, but its access terms are not shown.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue