6.__Elementary grades.__"Elementary grades" means kindergarten to grade 8 and includes children enrolled in early kindergarten programs and 4-year-old children enrolled in a 2-year childhood education program prior to grade one.

7.__Elementary school level.__"Elementary school level" means the grades from kindergarten to grade 5 and includes early kindergarten programs and 2-year childhood education programs enrolling 4-year-old children prior to grade one.

8.__Essential programs and services.__"Essential programs and services" means those educational resources that are identified in this chapter that enable all students to meet the standards in the 8 content standard subject areas of the system of learning results established in chapter 222.

9.__Essential programs and services transition percentage.__ "Essential programs and services transition percentage" means the full estimated cost for all essential programs and services for that fiscal year that will be funded by a state contribution or by a required local contribution.

10.__Grade 9 to 12 portion.__"Grade 9 to 12 portion" means those pupils in the secondary grades or high school level.

11.__Guidance staff.__"Guidance staff" means full-time public guidance counselors, directors of guidance or school social workers, as documented in the department's database.

12.__Health staff.__"Health staff" means full-time public school nurses, as documented in the department's database.

13.__High school level. "High school level" means grade 9 to grade 12.

14.__Income weight. "Income weight" means a value between zero and one that is used to adjust a municipality's ratio of local median household income to the statewide median household income.__ The income weight plus the property weight, as defined in subsection 24, must total one.

15.__Kindergarten to grade 8 portion. "Kindergarten to grade 8 portion" means those pupils in the elementary grades or a combination of the elementary school level and middle school level.