Depending on your budget, there are some very nice areas around west Perth. Most should have good schools. Wembley, jolimont, city beach, Churchlands, Wembley downs, mt Hawthorn are all affluent areas and should all have good schools. I guess the other alternative is home tutoring. Probably more expensive, and you don't get the advantages of social development from mixing with other children. Plus you would need to satisfy the authorities, but as it is only for six months there could be advantages, plus you won't be making friendships for your child that you know you will have to break.