Mission Science on PBS. I currently have a two year old attending who started there at 14 weeks in the infants room.

Program attendees can take home a tadpole. The children only transition once a year to their next classroom in large groups so they are able to maintain established friendships and have a sense of security as they move on to their next classroom.

That teacher is curiosity. Children will often bring their work to their past teachers to show their accomplishments to them.