Thursday, December 27, 2007

Problem Solvers

These games involve problem solving, computation, understanding number values, and chance.

What you'll need

Pack of cards

Paper

Pencil

What to do


1. Super sums. Each player should write the numbers 1-12 on a piece of paper. The object of the game is to be the first one to cross off all the numbers on this list.

Use only the cards 1-6 in every suit (hearts, clubs, spades, diamonds). Each player picks two cards and adds up the numbers on them. The players can choose to mark off the numbers on the list by using the total value or crossing off two or three numbers that make that value. For example, if the player picks a 5 and a 6, the player can choose to cross out 11, or 5 and 6, or 7 and 4, or 8 and 3, or 9 and 2, or 10 and 1, or 1, 2, and 8.

2. Make 100. Take out all the cards from the pack except ace to 6. Each player draws 8 cards from the pack. Each player decides whether to use a card in the tens place or the ones place so that the numbers total as close to 100 as possible without going over. For example, if a player draws two 1s (aces), a 2, a 5, two 3s, a 4, and a 6, he can choose to use the numerals in the following way:

30, 40, 10, 5, 6, 1, 3, 2. This adds up to 97.

These games help children develop different ways to see and work with numbers by using them in different combinations to achieve a goal.