9-A.__Gifted and talented costs.__"Gifted and talented costs" means the cost of programs for gifted and talented students that have been approved by the commissioner.

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 equivalent 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 equivalent public school nurses, as documented in the department's database.

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

13-A.__Institutional resident.__"Institutional resident" means a person between 5 years of age and 20 years of age who is attending a public school of the school administrative unit and who is committed or otherwise legally admitted to and residing at a state-operated institution.__"Institutional resident" does not include students attending private facilities, regardless of the means of placement.

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.

16. Kindergarten to grade 2 student. "Kindergarten to grade 2 student" means a student in any grade from prekindergarten to grade 2 who is at least 5 4 years old on October 15th of the school year.