Make 16 Instantly Obvious — The Presentation Lab
The Presentation Lab · In-Class Activity

Make 16 instantly obvious

16 circles — 4 green, 4 yellow, 4 red, 4 blue — scattered randomly. Drag them into an arrangement where anyone could instantly see there are 16.

There's no single right answer but some arrangements will let your eye take in all 16 in a single glance, while others will make you count them one by one.

↓   Drag the dots below

© 2026 McEachern & Associates Consulting Inc.