Developmental guidelines are helpful to teachers, home school teachers, evaluators and any other persons involved in childhood well being. The form I created is for the generalized abilities of the preschool aged child from the ages of 3 to 6. I found this type of tool very helpful when preparing for parent/teacher conference time or to assess a child who may need a little extra help in their abilties. I ran across an article from the nlm.nih.gov/medlineplus documents which supports the importance of understanding developmental stages. See realmontessorihelp.com for more information.