Parents guide their children with their fingers: 1, 3, 5, 7, 9 all end up in pairs, and one of them is always unpaired. These numbers are all singular: 2, 4, 6, 8, 10 finally paired, with no remainder. These numbers are even numbers, and even numbers are pairable numbers.
Teach children to find even and odd numbers?
Parents first let their children find out which organs of their bodies are even and which are odd (such as eyes, ears, hands and feet are even; Head, nose and mouth are singular), and then let the children find out which clothes are singular and which are even (such as socks, shoes and gloves are even, hats, scarves and belts are singular).
You can also ask your children to tell which items in your home are odd and which are even, so as to consolidate your understanding of even and odd numbers. Some children may find it boring to know numbers.
You can give some vivid examples, such as whether mom is lonely at home alone, and neither of them is lonely with dad, so mom is singular and mom and dad are even (by the way, there are two people, so it is even).