Content atlas · skill

Count objects with one number word per object

The learner can count objects with one number word per object. This capability is distinct from mere exposure to or isolated use of stable order principle.

2 published problems

1. The Fire-and-Frost Dragon Bridge — Investigate every shortest way the fire and frost dragons can swap sides of the bridge.
2. Firefly Jars — Count four glowing jars, circle the jar with five fireflies, and finish another jar to make five.