Content atlas · skill

Use the last count word as the total

The learner can use the last count word as the total. This capability is distinct from mere exposure to or isolated use of one-to-one counting.

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.