As a teacher, there are always ways in which you can improve and offer a better education to your pupils. Regardless of the age of pupils you teach, there are new ways in teaching and offering help and support than can literally change a pupils prospects.
During the summer holidays is the perfect time to rethink the way in which you teach and start to consider changes you may want to make when you go back in September. Firstly you need to know that you have your classroom in order. You may need to give up a few days of your holiday in order to go in to the class, but this will give you the chance to rearrange furniture if needed and set up displays, all of which is very hard with a class full of children.
Try and get ahead with your planning and make sure that you have all the resources you need. You may want to have a rough plan of what you are going to do taking you up to half term and then on a weekly basis create a more detailed lesson plan and print off materials etc that will be needed.
If you found that you struggled with classroom control, then do some research and try and find out different ways in which you can deal with disruptive pupils to get the best outcome.