One of your children is easy-going and obliging but the other is so stroppy and moody that he's driving you mad. What can you do?

Don't compare and contrast. Comparisons don't motivate. A far more likely outcome is that the 'bad' child becomes worse. As one young boy said, 'If I can't be good, I'll be the best at being bad'.

Look at the individual
The first thing to do is to consider your son's behaviour, without any reference to your daughter. Don't compare them. A comparison is always a put-down for one child. It's likely to make him worse and it drives a wedge between your children.

Don't compare directly...
There's a great temptation on the part of parents to compare siblings. They say things like, 'Why can't you be more like your sister?' in the hope that this will motivate the 'bad' child to become more like the 'good' child. This rarely happens. More likely is that each of them becomes confirmed in their roles, the 'good girl' and the 'bad boy'.

... Don't compare indirectly either!
Comparisons favourable to one should also be avoided, since it is an implied criticism of the other child. 'You get on with things without being asked to' 'You always look neat and tidy'. The implication unlike your sister or brother is clear to everyone.

Don't try to make one child feel good by highlighting the shortcomings of his sibling. This applies even if the sibling is a baby. Avoid saying things like, 'You're so cheerful unlike the baby who is always crying.' It encourages rivalry and undermines the relationship between them. Try instead to work with your children to build positive and supportive relationships between them.

Your son and daughter should each feel that they are valued for themselves, as unique individuals who each have special qualities and talents.