Why do competent teachers of children in the age range of infancy through 7 years old need to be knowledgeable about children's development?

The answer is explained below

Explanation:

The Early years of a child's life is important for the brain's functioning and organisational development. These developments directly affect a child's ability to learn as well as emotional and social abilities.

Children learn quickly during their early years than at any other time of life. So a teacher must be aware of these things so that they can devise strategies to improve their learning skills.