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Cardboard slot-and-tab city

ages 4–5 · 3–5 min setup · 20+ min · Wipes up
Set up

Cut clean cardboard (cereal boxes, shipping boxes) into rectangles of various sizes. In each rectangle, cut a couple of 1-inch slots along the edges. Pile them on the floor.

Show your kid (30 sec)

Slot two pieces together at right angles. They stand up.

What you'll see

A house. Then "more pieces." Then a city. Kids at 4 figure out the slot-into-slot trick in about a minute; at 5, they design.

When they want to go again

Pre-cut some windows and doors. Tape the structure to a base for "permanence." Combine with the masking-tape sculpture.

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