A childish nursery rhyme is like a poem, with few words and few words.

I don't know if the following song meets your requirements. I wrote it myself. I hope it will help.

Children, be polite,

Say hello to the teacher.

Be modest when playing with your partner.

Don't fight in class.

The red light stops, the green light is on,

The yellow light can be distinguished slowly.

Walking on the sidewalk,

Be a traffic model.

Kids, talk about hygiene,

Don't throw rubbish into the box.

Wash your hands before meals,

Be healthy and not sick.

Children, love sports,

Early to bed and early to rise is a good habit.

I am a little flower of the motherland,

Running and playing football are healthy.