Language Development occurs at a rapid rate between birth to eight years of age. The age span you chose is known as when children learn to ask a lot of questions as they are trying to make sense of the world around them, including their schools, preschools, family members and friends. This is also a good time to expose a child to foreign languages, too.
Children of this age are considered at the pre-readiness or readiness level for literacy as well.
Hope this helps.
Louise Sattler, NCSP
Nationally Certified School Psychologist
owner of www.SigningFamilies.com