Writing involves organisation of ideas into a structure, formulating complete sentences, using interesting vocabulary and applying genre specific language. By the time we are working on writing, children usually have a good grasp on spelling. Now we can use genres such as narratives and persuasive texts to teach students how to organise their written language.
We like to complement what is happening at school, so if school is working on narrative, we can do this too. If they're working on persuasive text then we can do this. We teach the basic structure, what is required in each paragraph and then show the student how to make their writing more interesting by using higher level vocabulary and language devices such as similes, metaphors, direct speech and rhetorical questions.