Guided worksheet journeys
Choose a connected sequence when one challenge is not enough. Each arc shows where ideas branch, what each stop builds on, and how the routes reconnect.
The complete arc library
Every published arc is listed here. Open one to compare its stages, routes, prerequisites, and printable worksheets.
Worksheet arc · 5 problems · 4 stages · 2 routes
A worksheet arc that branches from recurrence into complex-orbit and safe-zone reasoning, then reunites those ideas in two exact Mandelbrot arguments.
Start: Rook’s Halfway SignalFinish: How Far East Can the Mandelbrot Set Go?
Worksheet arc · 3 problems · 3 stages · 1 route
A three-problem arc from comparing a few timed histories to building a frame-independent action integral and locating stationary action in an infinite family.
Start: Least Action LabFinish: One Knob, Infinitely Many Histories
