How to use: First, take out the Part - Whole Board. Use the Part - Whole Learning Magnets to represent numbers on the board according to the cards or your own ideas. This can help your child understand number relationships. The poster can be used as a reference. The Parent Guide gives you more tips on guiding your child. Attention: Keep the small parts like magnets away from children when not in use to avoid choking. Make sure your child doesn't put the parts in their mouth. Maintenance: Wipe the board with a soft cloth if it gets dirty. Store all the parts in a dry place to prevent rusting of the magnets and damage to the cards and poster.