

Grade-School Kids

Like nature
Identify with family
Worry about fairness
Get excited easily
Need frequent physical activity
Middle-School Kids

Understand ethics
Challenge rules
Think in the abstract
Become self-conscious
Need positive reinforcement
High-School Kids

Identify with peers
Question authority
Can interpret complex science
Illustration: Gary Hovland
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Reprinted from the HHMI Bulletin, September 2001, pages 18-21. ©2001 Howard Hughes Medical Institute
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