Regarding “adequate” education:
“The State Constitution states: “The university and all other state educational institutions shall be open to students of both sexes, and the instruction furnished shall be as nearly free as possible. The legislature shall provide for a system of common schools by which a free school shall be established and maintained in every school district for at least six months in each year, which school shall be open to all pupils between the ages of six and twenty-one years.”
Although the following case concerned standards for capital facilities,
it includes language that can be generalized to all aspects of public education.
In Hull v. Albrecht (Albrecht I), 950 P.2d 1141, the Arizona supreme court (1997) said:
“Once a standard is set, the legislature must choose a funding mechanism that does not cause substantial disparities and that ensures that no school in Arizona falls below the standard. A district may then choose to go above, but not below, the statewide standards for capital facilities… The general and uniform requirement applies only to the state’s constitutional obligation to fund a public school system that is adequate. Defining adequacy, in the first instance, is a legislative task. But, in addition to providing a minimum quality and quantity standard for buildings, a constitutionally adequate system will make available to all districts financing sufficient to provide facilities and equipment necessary and appropriate to enable students to master the educational goals set by the legislature or by the State Board of Education pursuant to the power delegated by the legislature.” Id.