It is important that everyone exercises most days of the week. It is important to get at least 30-45 minutes of cardiovascular exercising, some strength training and stretching.
All of these exercises can be done at home and for free.

At home for a cardio workout you can go for a fast walk, a jog, walk the dog, or walk up and down the stairs as much as possible. Any sports done outside of school can also help fill this category.

For strength training you can do some sit ups/ crunches, push-ups, and partner resistance training.

Flexibility is an easy one to do while watching TV. Just sit on the floor and stretch.

Try to remember to sit up straight, eat healthy foods, drink a lot of water and exercise.