There are many acting schools across the country. You can find them in the yellow pages or online. Here is a list http://www.acting-school-stop.com/acting-schools.html
You can try a community or youth center to learn about acting classes for your children that will be appropriate for their ages. The KD Studio is a place where kids can takes acting classes.
Try going to www.childreninfilm.com.It is a site geared specifically towards informing parents and teachers with useful knowledge about children and the art of acting. There you will find many answers to your questions.
Always seek valid websites when researching online. Local YMCAs, High Schools, Churches, and Home School Groups may have information relating to acting and drama classes for youth.
Open your local yellow pages and go to acting schools. You will also want to read some books on acting and lot's of acting books have lists of acting schools that your child can get some training.
modeling and acting
Some do and some don't.
in some in some
You don't have to have an degree for acting, just take some acting classes or courses to have some experience!
The website below gives you the information www.hadoopsource.com/files/sources/48ff88b288939/test.txt
If you are wanting to work in broadcasting some good classes would be speaking classes, journalism classes, writing classes and some acting would help as well.
The website http://www.kidzworld.com/article/4109-acting-workshops-to-hone-your-skills lists schools in three major parts of the country at which you might be able to find acting classes for your kids.
Since acting classes are best suited as local classes, your location is key. Wikipedia has a list of drama schools available here: http://en.wikipedia.org/wiki/Drama_school which covers the entire globe.