Sister Imelda Caissie Early Ed Center/Exten, Sion Program is a licensed child care center in Winooski, VT. At Sister Imelda Caissie Early Ed Center/Exten, Sion Program, we enroll children as young as 24 months through 4 years old. We are a medium-sized center. We participate in a subsidized child care program. To learn more about us, please send us an email.