Classes by Age2023-2024 School Year calendar beginning September 5 0-5 Year Olds 6-10 Year Olds Big Kids & Grown-Ups 0-5 Years Old Register Here for Classes for babies through young children. For ages 4+, see also some of our 6-10 year old classes below. 6-10 Years Old Register Here for Classes for 6-10 Year Olds. For ages under 7, see also some of our 0-5 year old classes above. grown-Ups Register Here for Classes for Adults, Parenting Groups & More