Sirius Education Solutions is a Texas-based publisher focusing exclusively on supplemental TEKS-based instructional materials. Sirius sells print, digital, and blended learning resources for all 20 STAAR-tested courses from grade 3 through End-of-Course (EOC). In the last 10+ years, Sirius has helped over 700 Texas school districts better align their taught curriculum with how the TEKS are tested in STAAR 2.0, so students learn exactly what they need to know and do to succeed on all 20 tests. Sirius supplemental resources were designed to be easy to use, and they were adopted as core resources to fill instructional and student learning gaps with essential TEKS instruction and STAAR 2.0 practice. Sirius supports a wide range of student needs and multiple use cases. We publish test prep programs, both in print and online, for the End Of Course, Middle School, and Grades 3-5 STAAR exams. Our programs are different because they were developed using multiple released STAAR tests; they blend TEKS instruction with authentic STAAR practice; they have a 3-step approach to prioritize and individualize remediation; and they can be used in varied settings and contexts. Our staff includes teachers and professional content and test-item writing experts who have managed and written high-stakes tests. At Sirius, we take enormous pride in creating innovative and effective test preparation solutions designed to provide enduring success for Texas educators and students.