Whiteboard Markers That Survive Humidity

Coastal humidity wrecked two marker batches before we standardised on refillable ink and glass boards. Small detail, large impact: faint markers discourage sketching, and sketching is the core product.

We publish our supply list so self-paced participants can mirror the setup at home. Consistency of colour (black for structure, grey for erased doubts) keeps photographs readable when mentors review asynchronously.

If you run a study group, borrow the rule: no erasing until the whole table agrees the diagram is wrong—prevents premature cleanup that hides useful mistakes.

This post is intentionally mundane; infrastructure is part of curriculum design, not an afterthought.