Dadafu
A family building guide
Rainbow Arch
11 magnetic tiles · 3 steps
Colorful blocks arch over an open passage
What pieces do you need?
- ×9square tiles
- ×2right triangle tiles
Compare with your tile set
Choose the exact set to compare quantities. For other brands or mixed boxes, use each plan’s piece list.
The rain has stopped. Join the two sides of a rainbow and leave a little doorway underneath.
Before you build with real tiles
- Lay every tile flat on a level table. Use the top view to see the complete picture.
- Match the real tile shapes in the material list. Colors can vary; keep faces side by side without overlapping.
How to build it, step by step
1. Start at the two ends
Add in this step: 4 square tiles
Lay two squares in a column on each side, leaving space between them.
Hands-on tip: Lay the tiles flat. Match the pictured edges and turn each triangle so its point faces the right way.
Step 1 / 3 2. Meet across the top
Add in this step: 5 square tiles
Join five colorful squares across the top of the arch.
Hands-on tip: Lay the tiles flat. Match the pictured edges and turn each triangle so its point faces the right way.
Step 2 / 3 3. Fill the sloping corners
Add in this step: 2 right triangle tiles
Fit a right triangle into each upper corner.
Hands-on tip: Lay the tiles flat. Match the pictured edges and turn each triangle so its point faces the right way.
Step 3 / 3
A little help for grown-ups
You do not need to plan a lesson. Use these prompts when you reach a tricky step, or when your child wants to try an idea of their own.
Take this plan to the building table
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