It is important to understand a little bit about child development in order for you and your husband to sort through all of this. All two year olds lack an inner mechanism to control their behavior, and this extends through age three for many children. One of the great struggles of this age is learning how to attain some self control, and it happens for each child at different ages. One must also take into account different temperaments; some children are a bit more high strung than others. Certainly no one should label a three year old as "hyperactive"--it's the nature of the beast at that age! There are many children who are extremely active at age two and a half to four, who settle down nicely by four to five.

Also, it is not at all unusual for children to still put things in their mouth at age three. However, you also don't want to totally reject the information that the teachers are giving you. Presumably they are educated and experienced people, and are spending up to 15 hours a week with your son--they probably have some useful insights. I would use their concerns as an indication that your son may need some help from you to achieve better self control. He may need more consistent and firm limit setting, appropriate use of time outs for unacceptable behavior (e.g. safety issues), and a certain amount of structure and consistency in his day. You should talk with your pediatrician to make sure there are no specific medical concerns based on his history. I would then recommend setting up a plan with the teachers for handling the problem behaviors so that there is consistency between home and school. If you work together you will likely be able to alter the behaviors that your child is exhibiting, without giving him any negative labels.