Your child's first exposure can come as early as infancy, if you bring them to a mom and baby yoga class. While this may not make much of an impression on a young child, by the age of three they will probably be ready to do simple poses. Many yoga studios now offer age-appropriate classes for toddlers and school-aged kids, which may include singing, movement, and lots of talking. Kids have a lot of questions, after all, so the mood will be much lighter than an adult class. Make sure that your child’s teacher is certified to teach yoga to kids (when in doubt, ask the studio or the teacher herself). If you are considering a drop-off class (one in which parents do not participate), ask to sit in and observe before your child begins or during his first class.