Wednesday, April 13, 2011

Double Pennies for a Week or Take a Dollar?

Here's another great extension for a paired reading of the books, One Grain of Rice and The King's Chessboard, two books that explore the concept of doubling.

I asked my son which he would rather have:

1. a penny today that would then double each day for a week.
2. one dollar.

I made a handout for him to record his thought using words, pictures and/or numbers.


Print the handout and try it with your kids. I'd love to know what methods they used to solve the problem.



P.S. After he chose "A", I gave him the $1.27. He eagerly put it in the coin box he made in Sunday School and then put it in the offering at church. His idea. Happy sigh.