An assignment for Mathematics, Grades 9-12, is allowed with one of the following certificates.
  (1) Grades 6-12 or Grades 9-12--Mathematics.
  (2) Junior High School (Grades 9-10 only) or High School--Mathematics.
  (3) Junior High School (Grades 9-10 only) or High School--Mathematical Science, Composite.
  (4) Legacy Master Mathematics Teacher (Grades 8-12).
  (5) Mathematics: Grades 7-12.
  (6) Mathematics: Grades 8-12.
  (7) Mathematics/Physical Science/Engineering: Grades 6-12.
  (8) Mathematics/Physical Science/Engineering: Grades 8-12.
  (9) Physics/Mathematics: Grades 7-12.
  (10) Physics/Mathematics: Grades 8-12.
  (11) Secondary Mathematics (Grades 6-12).

Source Note: The provisions of this §231.191 adopted to be effective August 15, 2013, 38 TexReg 5076; amended to be effective December 27, 2020, 45 TexReg 9183