Is it better to avoid saying "a normal child" and "a disabled child"?

Wording that splits into normal versus disabled tends to give an impression of drawing lines or superiority, so it's recommended to avoid it. Calling the child by name, "○○," or, when needed, saying concretely "a child who finds ○○ hard, or who needs some help," gets through better. Putting the person first and the disability second (people-first language) helps too.

For a child, you could say: "Instead of 'the disabled kid,' let's call them by name, '○○.'"