how to discipline a7 year old child

i have a eight year old to and she sometimes mouths off,what i do is take things away from her that i know she loves ,like phone ,sterieo computer, and even playing outside it seems to make my daughter think twice about mouthing off and being disrespectful. try this .hope this was helpful

I think that if a child is not discipline since the beginning, it would be hard later on when your child grows up, so its better to start early than pay for the consecuences. Its okey to give a lot of love to your children but discipline as well.

Her behavior is probably not new, but has gotten worse with her boost of confidence. She, I would imagine, has been a high maintenance or headstrong child for a long time. It's time to put your foot down.
The object of discipline is to teach self-discipline, the object of teaching manners is to become aware of how our behavior affects others. You start calling a spade a spade. When you request that she do something aalways say please. When she starts screaming and complaining, you rise from your seat. You do not respond to anything she just said. You focus on what she just did and say "How dare you speak to me so rudely in that tone of voice young lady.
I asked you to . . . and repeat it with a please--Get it done now.
When she returns, ask her if she finished the job, if so say thank you. Do not bring up the incident again.
You are to be treated with respect at all times. A child will do what he/she is allowed to do--this is not allowed. Never enter into an argument with a child, either. You give a command, politely, and expect it to be done--no matter what the reply is, you do not respond to the accusation, you respond to the tone and focus on what the child was asked to do. If the child refuses--don't fight with her--reiterate the refusal. Let me understand. I asked you to pick up your dirty laundry off the floor in your room so I could wash them, fold them and put them away for you and you are refusing a small favor I ask of you? I'd be very careful if I were you. I just may start refusing to do small favors for you, too. If she responds nastily again. Turn slowly toward her and say very low, clear and calmly. Get your clothes in the hamper now. She'll do it. You don't have to take anything away because she is smart enough to figure out how dependent you made her understand that she is on your good will. Do not ever let her push you around again.
After the incident is over, you remain the adult, joke fool around, don't bring it up again. Be open and honest, but remember she is a little child and you are ten times smarter and sharper than her.

My daughter is 7 years too, sometimes she tries to scream at me but inmediately I tell her that if she do that again she will be grounded, try to see if it is not something you need to check up on, check with your child's doctor if is not a problem to be addressed at, then your child might need a little discipline, I don't mean spanking her, just find out what she likes to do the most and take it away from her until she can prove you respect, I tried this with mine and it seems to work, you have to let her know who is the boss and makes the rules or else if she grows up this way, it will be a total nightmare for you and your husband.