In the foreground, a boy of 3-4 years old in warm clothes sits on the ground in front of a

For kids with a slightly larger sand box

1-2 Years

The foundation of creativity

8-10 Years

Masters of the trade

2-4 Years

The age of the apprentice 

10+ years

The engineers

4-8 Years

 Becoming journeymen

Advanced 

The scientists

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