Content atlas · skill

Interpret a product as equal groups or a rectangular array

The learner can interpret a product as equal groups or a rectangular array. This capability is distinct from mere exposure to or isolated use of Grade 2 arrays.

4 published problems

1. The Chest Room Split — Track an 18-piece order across six equal supply chests and decide where Alex stops.
2. The Ore Cart Graph — Read a Minecraft ore graph, move one cartload, and update the comparison.
3. Lakitu’s Hidden Boost Setting — Test Lakitu’s hidden boost setting and prove where every later checkpoint becomes reachable.
4. The Museum Display — Choose how many museum cases receive sapphires so the finished collection can be shared into equal trays.