Some problems are worth standing up for. On exploration days you work in random groups of three at the vertical whiteboards, on a problem nobody has taught you to solve yet — that is the point, not an oversight. The technique arrives after the thinking, and it lands harder because your group already needs it. Expect to be stuck; being stuck is the work, as Why Struggle Is the Point explains.

ExplorationThe question
The Function MachineWhat makes a machine trustworthy?
Folding Paper to the MoonHow many folds to reach the moon?
How High Is That?How do you measure the unreachable?
The Ferris WheelWhat does going in circles look like over time?
Patterns That CountWhat comes next — and what comes 100th?
The Allowance ChoiceA dollar a week, or a doubling penny?

Hints nudge; they never march. Ask, and you get a question back — see Getting Unstuck. No solutions appear on these pages, ever: the class builds them together, per Our Classroom Norms.