TExES Mathematics 4-8 114-115 Includes 19 competencies/skills found on the TExES Mathematics 4-8 test and 125 sample-test questions. This guide, aligned specifically to standards prescribed by the Texas Department of Education, covers the sub-areas of Number Concepts; Patterns and Algebra; Geometry and Measurement; Probability and Statistics; Mathematical Processes and Perspectives; and Mathematical Learning, Instruction and Assessment.