Stereo, television, plants, breakables, valuables.
"Don't touch the stereo, because it is only for grownups. Ask me for help if you want it turned on."
Mainly, childproof the environment. Put away valuable or dangerous objects, use gates, and lock doors to make certain areas off limits. For objects that can't be removed, use clear verbal disapproval. If this fails, use temporary time-out.
Much of this exploratory behavior is normal and helps your child develop mental and physical skills. In general, encourage this normal curiosity. Allow your child to explore some closets and shelves. For example, give your child a drawer of his own in the kitchen where he can keep some utensils you no longer use. As he gets older, teach your child to explore objects with his eyes rather than his hands.
Praise your child for asking you to turn on the television or stereo.
Some children take toys or other objects apart out of curiosity. Sometimes children break things accidentally. Since people are more important than property, these children need sympathy, not punishment.
"Don't break things, because they cost money and/or are hard to fix."
Use the time-out technique. This means immediately isolating a child in a boring place for a few minutes when she or he misbehaves. In addition, use logical consequences. If the object belongs to the child, don't replace it. If the object is yours and your child is over age 6, have him or her pay for part of it out of allowance money.
Praise your child for taking good care of your possessions and his or her own possessions.
Show care in handling other people's belongings.
"Don't jump on the furniture or bed, because you might break it or get hurt."
Redirect your child to some other play - if possible, one that involves jumping.
Praise your child for playing in the bedroom without jumping on the bed.
"Don't put any marks on the walls, because it's hard to get them clean."
Use logical consequences. Have your child clean up the mess he or she has caused. Also, you should temporarily remove the privilege of using paints, crayons, or markers.
Praise your child for drawing on paper.
"Don't break toys, because they cost money. Don't throw toys, because you might break something in the house."
Praise your child for taking good care of possessions.