I have seen schools that will have some kind food preparation activity in preschool or kindergarten (usually trying to teach them that eating healthy can be fun) that involves simple foods like fruit or pumpkin seeds, but that is as far as it goes. It is typically a one time lesson too. Most kids will not see any kind of cooking lessons in school until they hit high school, but with all the budget cuts nowadays those classes are quickly disappearing. It is very sad because cooking can be such an art and there are many techniques and lingo to learn that can be difficult and frustrating to try to learn on your own.