Mission 3 is a first house: a 5×5 home next to the dog’s. It’s the first mission that’s really about measuring, and the first time a plan meets reality.
What the mission builds
- Measuring and counting. Count out five blocks one way and five the other, then mark the corners.
- Square numbers. 5 × 5 = 25 floor blocks. A great moment to notice why it’s called a “square” number.
- Design decisions. Where do the door and windows go, and why? There’s no wrong answer, only a reason.
- Comparing plan and reality. The Plan & Log page asks how many blocks were planned and how many were used.
A conversation starter
“Which room in our home would you design differently, and how?”
Or a sneaky maths one: “Why did the wall need fewer blocks once you added a door?” If counting gets muddled in the game, suggest placing a different coloured block on each corner first.
Try it off-screen
Use masking tape to mark a 5×5 square on the floor, one big step per block. Can the whole family fit inside the “house”? Where would the bed go?
See Mission 3 · Missions 1–5 are free as full printables.