Children should be able to choose appropriate words that make sense within a sentence. For example:
Creative writing
With an extensive range of creative writing resources to choose from, children can practise accomplishing cohesion.
You could get children to try managing shifts in levels of formality with this resource pack. Or fire their imagination with this Suspense and Mystery Text Features Worksheet.
Grammar
Getting children to practise recognising and using punctuation, clauses, tenses, and different types of sentences will help them develop cohesion naturally in their writing.