Here is the overview of the spelling programme we use in school. In this document you will find lists of words you could use to support your child with learning each pattern/rule.
Y3 spelling

The document below offers further ideas of short tasks your child could do when practising their spellings.
More spelling activity ideas

Spelling CEW Task 1

Spelling CEW Task 2

Spelling CEW Task 3

Spelling CEW Task 4

Spelling CEW Task 5

Here are more strategies for learning to spell words.
Spelling practice strategies

This document contains more games/activities your child can use to practise their spellings.
KS2 Spelling Menu

During the year your child will learn to spell more common exception words. Below is the list they will need to learn by the end of Year 4.
National Curriculum Year 3 and 4 word list