Each year, the Houston Independent School District (HISD) offers a summer education program designed to assist students with a variety of instructional needs. Centrally coordinated summer school programs in 2018 included accelerated instruction for State of Texas Assessments of Academic Readiness (STAAR) and STAAR End-of-Course (EOC) re-testers; bilingual or English as Second Language (ESL) classes for English Learners (EL); credit accrual/recovery for students needing to graduate; Extended School Year (ESY) services; Promotion/Retention classes; and other school-based programs. The summer education program supports HISD's Strategic Direction Core Initiative 3: Rigorous Instructional Standards and Supports. The report shows student enrollment and outcomes for students who were eligible for and attended summer school in 2018. Key findings include: (1) A total of 35,388 students attended the HISD 2018 Summer School program in grades 1-12; (2) In grades 1-8, 15,693 students attended the HISD 2018 Summer School program after being retained at the end of Spring 2018; (3) Of the 2018 summer courses taken by high school students (grades 9-12), 47 percent were in STAAR EOC subject areas, while 53 percent were from other course selections such as industry classes, physical education, and foreign language courses; and (4) Of the five STAAR EOC exams administered following the 2018 summer school program, U.S. History (41 percent) had the largest proportion of students meet at or above the Approaches Grade Level standard. English II (21 percent) had the smallest proportion of students meet at or above the Approaches Grade Level standard. Recommendation: Of the 60,280 course enrollments by students in grades 9-12 during the 2018 summer school program, 21,323 (35%) were identified as completed. This lack of completion has a detrimental effect on the judicious use of finite HISD resources in meeting the needs of HISD students needing support to meet graduation requirements. Therefore, it is recommended that steps be taken to identify barriers to course completion and mechanisms be put in place to overcome the identified barriers.