Teachers are important in a child's upbringing, but parents are with children from the very first day they are born, and are the ones who inculcate the most basic personal and social skills to them. Parents teach children how to function as humans, as well as social creatures by being part of a family.
The parents are more important in a child's early childhood development. They are there for the earliest and most developmental years, so it is important for them to behave properly. Teachers are very important too, but it's probably not even close. The parents are easily the most influential people they have.
Parents are more important in a child's early development years because they teach morals and what's right and wrong. Many life lessons and skills are also acquired from parent-child interactions. Children also get more individualized attention from parents, while teachers have several children to look after and to work with.
I believe that parents are more important than teachers in a child's early childhood development. The parent spends all the time with the child until he or she is five years old and goes off to school. Even when children are in school parents are still more important because they are the role models, set up discipline, and give love and support to their children.