Academic coaches do help incoming students prepare for the TSI exam (or other placement tests). A Google search will help you find practice tests to take. Once you've done that and identified topics that give you trouble, come to the coaching areas whenever they're open with your practice materials to receive guidance on how to improve.
TSI Math test preparation materials can be found towards the bottom of the LSC-University Park Academic Coaching page, along with instructions for how to download & extract the content from zip files.
