What you need:
- Ten recycled plastic juice or soda bottles
- Medium-sized rubber ball
- Smaller balls
- Water or sand
What to do:
- Help your child to set up the bottles in a triangular shape starting with one bottle in the front row, two in the second, three in the fourth, and four in the final row. Trace the shape of the bottle triangle with chalk to use when setting up the pins again. (To prevent bottles from being blown over by the wind, fill each one partway with water or sand.)
- Make a mark to indicate where you'll stand to roll the ball.
- You can play the traditional way and take two rolls at each turn, or you can encourage your child to take as many turns as he needs until all of the bottles have fallen. To encourage math development, ask him to count the bottles that have fallen and those that remain as you play.