For the kids of primary school can use lyrical form & grammatical rhymes to teach some new words and ofcourse a lyrical poem. Doing activity like singing and doing actions and using language in conversational ways.

Another way, I can teach is with showing pictures and using artistic formats.

I was a home tutors in past, have given my students the learnings which they needed according to their understanding, which made learning english easy & fun for them. They enjoyed fun learning english with me.