Fingertip Frog

You may not believe it, but the teeny frog on that coin is real. It’s smaller than a dime or a Cheerio. Two scientists, Christopher Austin and Eric Rittmeyer, were exploring a tropical forest when they heard a weird sound. They looked everywhere, but couldn’t find the thing making that noise. Finally they just scooped up a bag of leaves and took it home, where the teeniest frog they had ever seen hopped out. The best part is, if you want one as a pet, you can carry him around in your wallet.

Wee ones: Frogs usually have 4 “fingers” on each front foot. You have 5 fingers on each hand. Whose “hand” has more fingers?

Little kids: If 1 frog sits on a dime (10 cents) and another sits on a penny (1 cent), how many cents are the frogs sitting on all together?  Bonus: How many more frogs on pennies would you need to make 14 cents total?

Big kids: If your hand is 6 inches long, and you can line up 3 frogs in an inch, how many frogs could you line up on your hand?  Bonus: This tiny frog can leap 30 times its own length! If you could jump 30 times your length (height), how many feet would that be? (You can round your height to the nearest foot or half-foot…or try it in inches! Hint if needed: Multiplying by 30 is like multiplying by 3 and then by 10.)

Answers:
Wee ones: You have more fingers.

Little kids: 11 cents.  Bonus: 3 more cents.

Big kids: 18 frogs.  Bonus: Different for everyone…multiply your height in feet or inches by 30.

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