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

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8-10 Years

Masters of the trade

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2-4 Years

The age of the apprentice 

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10+ years

The engineers

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4-8 Years

 Becoming journeymen

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Advanced 

The scientists

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