In the writing sat for ks1 they mark on several different things. i.e.,
puctuation (full stops, capitals, ! ? commas and correct use of speech marks
content (depends what paper your school is doing as now schools can choose from past sats papers, so if doing a letter, the child needs to organise their writing like a letter, if doing a recount have to use correct language etc etc
Use of language : lots of adjectives, imagery, phrases, make it interesting
Spelling - this is a separate test and not related to the writing.
HAndwriting, can only get the top marks if it's joined with correct formation i.e., ascenders, descenders, all correct.
Maths - all sorts of number problems and topic problems.
Reading - all sorts of questions related to different skills - make sure your child refers back to the text when you ask her questions when you read with her at home.
Please ignore typo's and spellings as trying to feed ds at same time!