LearningExpress Library This link opens in a new windowCreate a LearningExpress account to access test preperation materials. Once logging in, simply type TExES into the LearningExpress search box. TExES (Texas Examinations of Educator Standards) exams must be taken in order to be certified to teach in Texas. You can find practice tests that offer prep questions you can expect to see on the TExES Pedagogy and Professional Responsibilities EC-12 test.