On the bench · not built yet

Fence Builder

Build a dog pen with a fixed amount of fencing; find the shape with the most room. Area vs perimeter, felt.

Nearby on the shelf

Feed zoo animals equal groups; the tool shows the same picture as an array, a skip-count and an equation.

A retro dungeon crawl where each door is a fact; facts you miss come back as tougher monsters until mastered.

Odd number patterns in the multiplication table hide a culprit's alibi; explain the pattern to close the case.