Spatial Learning · Reference lab
One quantity, many pictures. Finish a lesson to plant a discovery and record quiet practice evidence for grown-ups — never a camera or mic. Classic Story Lab stays as-is until you opt in with ?spatial=1.
Cedar Bridge · Missing addend
Count the empty spaces on the bridge. Which plank fits?
4 of 6 units placed
Choose a plank
We need 6 units. We already have 4. Which plank fits?