We have enjoyed using the computer to solve problems. Here are some of the websites we used:

The Lemonade Game
Try to make as much money as you can in 30 days. You decide how much to charge for your lemonade and how much stock you need to buy. Keep an eye on the weather!

The Balloon Car Builder
Design your own virtual car. Make decisions on the size of the wheels, axles, chassis and hole for the balloon, then see how far and fast you can make it go.
(This activity requires a download - ask permission first)

Design your own tile patterns
Use hexagonal tiles to make your own patterns. Can you make a symmetrical pattern?

Tangrams
Try to build pictures from a magic set of shapes. Can you make a rabbit? How about a boat?