Poems

Poems are a good tool to teach English to the little ones since they are simple and short.
They have rhymes, so they are easy to understand.
Specially with the youngest ones considering that they do not speak yet. Although they do not understand English very well but all of them know their names and basic vocabulary about animals, colours...

Here you have some examples:

Poem 1: Everybody has a name

This is a good poem for children to learn that names can be different or similar to their own but all names are fine.

Furthermore you can interact with the children asking them: "What's your name?"

Poems about animals

Poem 3: My turtle

Poem 2: I am a little penguin

These are short poems. You can show some animal's pictures while you read the poems. As a result children learn the vocabulary better.

One poem about the colour blue

Poem 4: Blue

You can teach the colours one by one with poems that they include examples of real world.

This is a web page that has 7 poems and their benefits:
https://www.fluentu.com/blog/english-esp/poemas-en-ingles/