Would hike standards, offer adult education . . . Central High principal seeks 4-pt. improvement program Principal A..L. Stanback oft - Hillsboro’s Central High School ' has presented a four-paint instruc ttrrtal enrichmeril program request to the County Board of Educa tion. Basically die requests ask that (1) the pupil study unit require ments .for graduation be raised from 16 to IS; <2) that general science be made a required sib ject for all pupifcr