Alright guy, I think highly of you for being so interested at such a young age...

What it sounds like is you are short and fat and want to look better? I used to be the fat kid in class myself (when I was 11 I was 160 lbs and about your height..) so I can understand how you feel, maybe.

What I would suggest, if you want to lose weight, is not to do very much lifting at all. You are still young, and working out with weights can cause some damage to a body thats not finished growing. When you are around 13 or 14 you can look to get into more lifting, thats just my opinion on that though...

What you should do to lose weight is cardio excersizes. This means things like running, jogging, bike riding, playing sports like soccer, basketball, hockey or anything that involves a lot of movement. If your parents can afford it, I would really recommend going to a martial arts school that involves a lot of movement such as Tae Kwon Do or Shotokan Karate, or whatever kind of Karate schools are near you. Martial arts will help you increase flexibility, provide you with a trainer to keep your progress up, help you build strength and confidence, help you lose weight and get you into great shape pretty fast (AND ITS A LOT OF FUN!!!)

If that option is out of the question, just run. Find a place where it's ok for you to run and do it. If not, take your bike out and go for a ride, its a lot of run and make sure you keep the pace up to burn off some calories. Its fun, challenging and will get you into shape.

If you STILL think this isn't what you want and you REALLY want to lift, then stick to calestheics at your age (that means workouts that use only your body weight like pushups, pullups and dips on a bench. These will increase your strength and get you in control of your body.

It sounds like you look at yourself as "the fat kid" and when you are 11 that can be a tough place to be in. I was the same way and I'm VERY glad you are lookin to get on top of that. My biggest recommendation would be Karate. It is so much fun and it will really get you into shape and get you more powerful than you think! After 2 months of karate, one kid who i was training who was about your age and weight could already break three boards with a side kick. 2 months isnt a long time, and you can be that powerful too!

Look into it bud.