Govt Code 411.188 (on pg 18 of the 2018 LTC-16) says:
(Subsection (d)(2) is the Range Proficiency Exam)(d-1) A qualified handgun instructor shall require an applicant who successfully completed an online version of the classroom instruction part of the handgun proficiency course to complete not less than one hour but not more than two hours of the range instruction part of the handgun proficiency course before allowing a physical demonstration of the handgun proficiency as described by Subsection (d)(2).
Other than the 1-2 hours of range instruction preceeding the qual, there's no set course outline for what must be covered in the range training. The DPS email from today says the topics covered in this 1-2 hrs is up to the instructor's discretion.