Challenge Question #1: Who saw a stronger migration?

 

Question:

  • John saw 80 monarchs and Mary saw 79, but Mary saw a stronger migration. How can that be? What missing information do you need about John and Mary’s observations to explain this?

Clue:

This clock is a clue about the kind of information is missing.

Answer:

Try the question yourself, then see how others answered. >>

<< Back to Challenge Questions