Mathematics is the queen of the sciences.
Carl Friedrich GaussExam Guides
Guides for Texas Credit by Exam, SAT and PSAT, AP and AMC — what is on each one, when it is sat, and how to prepare.
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Cypress-Fairbanks ISD CBE — Parent Guide: 80% Pass + GPA/Class-Rank Impact (2026-2027)
CFISD Credit by Exam: 80% pass standard, three uses (accelerate graduation, make room for elective, credit recovery). Critical CFISD-specific rule: CBE grades and credit ARE used in GPA and class rank. 2-opportunity cap for MS students taking HS-credit CBE.
Coppell ISD CBE — Parent Guide: 80% Mastery, TEKS-Aligned, CISD-Only (2026-2027)
Coppell ISD Credit by Examination: 80% for acceleration, TEKS-aligned, CISD-enrolled students only. Grades 1-5 + HS.
Crowley ISD CBE — Parent Guide: 80% Mastery, 2 Comprehensive HS (2026-2027)
Crowley ISD Credit by Examination: 80% for acceleration, 70% for credit recovery. Two HS: Crowley HS + North Crowley HS. Register through campus counselor.
Prosper ISD CBE + EA — Parent Guide: 70%/80%, Year-Long Course Window Rule (2026-2027)
Prosper ISD (PISD-North) splits CBE (70% pass, prior instruction) and EA (80% pass, acceleration) into two separate programs, with grade-band tracks for 1-5 and 6-12. Year-long courses (Algebra 1, Geometry, Biology, U.S. History) restricted to specific placement windows.
Carroll ISD Southlake CBE — Family Resource Guide: 80% Pass, UTHS-Only, District-Paid (2026-2027)
Carroll ISD Southlake CBE: 80% acceleration, 70% credit recovery. UT High School (UTHS) is sole vendor. District pays costs. K-8 grade skip; 6-8 math jump; HS untaken-course credit.
Midland ISD Credit by Exam — Parent Guide: 80% Free vs 70% Paid, Apply 30 Days Ahead (2026-2027)
Midland ISD runs two Credit by Examination tracks with different passing scores and different bills: 80% for acceleration, which the district pays for, and 70% with prior instruction, which the family pays for. The application is due at least 30 days before the test and needs four signatures. What a Permian Basin family needs before asking a counselor.
Round Rock ISD CBE + EA — Parent Guide: UT/TTU Dual Vendor, Aug 1 Deadline (2026-2027)
RRISD uses BOTH UT High School and Texas Tech K-12 as CBE vendors. Grades K-5 accelerate full grade level via 4 subjects. Grades 6-8 need 80% for single-subject acceleration. Registration Jul 1 - Sep 30, fall placement deadline August 1.
McKinney ISD CBE — Parent Guide: 80%/70% Passing, 3-HS Structure (2026-2027)
McKinney ISD Credit by Examination: 80% for acceleration (TEC §28.023), 70% for credit recovery (19 TAC §74.24). Registration through your campus counselor at McKinney HS, McKinney Boyd, or McKinney North. District Assessments office administers.
Leander ISD Exam for Acceleration — Parent Guide: 80% + UT/TTU Dual Vendor, May 1 Deadline (2026-2027)
Leander ISD Exam for Acceleration (EA): 80% for acceleration, UT HS + TTU K-12 dual vendor, May 1 registration deadline, results by Aug 1, 2-attempt limit per HS course.