The Middle School Partners program, offered at all 14 SAISD middle schools, helps over-aged middle school students simultaneously earn middle and high school. 2016-18 Rank Order School Enrollment Conference Arlington Martin 3364 6A South Grand Prairie 3363 6A Houston Lamar 3362.5 6A Laredo United South 3349.5 6A Warren’s Nathan Perez (left) won the 1,600 meters and was second in the 800 at the Alamo Relays. Photo by Marvin Pfeiffer/San Antonio…