Ready to conquer the ACT and achieve your dream college admission? Join Mackler Associates’ elite ACT tutoring program and transform your test prep experience. Our personalized strategies and comprehensive resources are your keys to unlocking a higher ACT score with an ACT tutor. Don’t wait to turn your college aspirations into reality. Start your journey to ACT success with a consultation today!
At Mackler Associates, we specialize in providing personalized ACT tutoring services tailored to meet the unique needs of each student. With decades of experience, we help students excel in all areas of the test through comprehensive test prep that covers ACT Math, ACT English, ACT Science, and ACT Reading.
We have a long record of success boosting each student’s confidence and ACT score.
Every ACT session is taught by Jason Marks personally. There is no roster, no assignment process, and no handoff partway through a program.
He was a National Merit Scholar, attended the Honors College at the University of Missouri, graduated magna cum laude and Phi Beta Kappa, and holds a J.D. from Washington University School of Law. He has prepared St. Louis students for the ACT since 2000.
That matters on this test in particular. The ACT rewards pattern recognition under time pressure more than raw knowledge, and spotting which question types a given student loses points on takes someone who has watched the same mistakes for twenty-five years.
Our ACT test prep programs are designed to provide students with a thorough understanding of the test format and question types they will encounter on the ACT exam, utilizing official ACT test preparation resources to ensure they are fully prepared for the rigors of the actual test. Through detailed practice tests and targeted practice questions, students gain the skills and knowledge necessary to tackle the test with confidence.
Our prep courses cover all aspects of the ACT, including specialized content like ACT Math and ACT Science, ensuring well-rounded preparation.


Jason Marks is not just a teacher; he is an expert mentor with a passion for academic tutoring and a track record of success in helping students achieve their college admissions goals. With personalized tutoring sessions and a focus on individual student strengths and weaknesses, an expert tutor can provide guidance and support tailored to each student’s needs. Through one-on-one private ACT tutoring, we are committed to delivering exceptional tutoring services.
Sessions are held at our office on North Mason Road in Creve Coeur, just south of Olive Boulevard, with parking on site. The office is a short drive from Ladue Horton Watkins, John Burroughs, MICDS, De Smet Jesuit and Saint Louis Priory.
Families come from across St. Louis County, including Ladue, Clayton, Chesterfield, Town and Country, Frontenac and Olivette.
The December ACT is on 12 December, and registration closes 6 November. Students starting now have time for a full program before the test.
We invite you to start your ACT test prep journey with a free consultation at Mackler Associates. During this session, we will discuss your individual needs, test date, and prep goals to tailor a program that best fits your schedule and academic objectives. Experience the difference with an ACT tutor and personalized test prep programs. Your path to a higher ACT score and college admissions success begins here.
Join us at Mackler Associates, where every student is a priority, and every tutoring session brings you one step closer to your academic goals. Discover the power of personalized ACT test prep tutoring and unlock your potential with us today!
Also preparing for the SAT? See SAT tutoring in St. Louis.