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Packing for a family holiday often feels like a rush to remember necessary things like socks or medicine. However, for children, packing can be valuable because it helps them learn math in real life.

Counting is a basic math skill. Before they pack, children should first think about the activities in the holiday. Different activities require different things. Then they will count the days about the trip and how many things they will take. For example, if swimming is included, they may need to take swimming clothes. If the trip lasts seven days, they will consider how many clothes they need. In this process (过程), they practice counting.

Sometimes, the suitcase is not big enough. After they fail to pack everything in, children quickly learn the importance of space. They might try folding (折叠) their clothes in different ways to make them smaller. By trying again and again, children start to understand something like volume (容积).

More importantly, the questions from adults can guide children toward deep thinking. For example, when the mother sees her child put milk and clothes together, she may ask her child if it is OK to do so. The child has to consider whether it is proper to pack that way. If not, the child will think about what the proper way is. Deep thinking is what children need when they solve difficult math problems.

Learning math happens not only at a desk but also in other places. Therefore, when parents do housework, children should try to take part if possible.