Watch this phonic video about initial constanant blends.
Sometimes at school we do dictation where we say a sentence and the children have a go at writing it down. Say the following sentences one at a time to your child (repeat as many times as necessary). Can they have a go at writing the sentences? Have they remembered the capital letter at the beginning and the full stop at the end? Maybe they could draw a picture to match the sentence.
The cocoon is green and brown.
The sun is up.
The moon is bright in the sky.
The egg lay on the leaf.