Communication is the key to success!  Tell the parents how their child's day has gone.  They need to know the basic information like diapering, and eating, but you also need to share the fun things with them.  Help them to not feel like they're missing out.  Write details on daily sheets.  Explain a child's behavior.  Add observations and quotes.  This will help build a strong relationship between the teacher and parents, and also a strong relationship between parent and child.  Toddlers can not tell their parents how the day went, but you can!