The bullying game cannot be played without the victim. For bullies to gain power, they must find a victim to take it away from. If we help the victims not to be easy targets, it will make it a bit harder for the bullies to take anything away from them.
Many of the tips described in list series are useful both for kids and for adults. Much like any other list, some are easier to implement and others are less so, but I promise you that if you go over each of them and dedicate time each week to implementing at least one, the bullying will decrease and may eventually stop.
Again, if you are a parent concerned about your child being a victim of bullying, some of the tips here are mainly for you. You can arrange for your kids to get to school in a safe way, order food for them so they do not take money to school and even talk to their teachers and ask them to get involved. Do not expect your kids to figure this out all by themselves. It is hard to be bullied and harder to think clearly and come up with mature solutions, so take charge!