Let's put students into Turkey-wide TYT-AYT exams. Your money will be refunded if they do not show higher success in the TYT -AYT exams related to mathematics than their classmates who went to a full tutoring center in 11th grade. BUT NEVER leave it to 12th grade. In 12th grade, only application procedures only solve TYT and AYT practice exams. Veritas also makes TYT - AYT preparations.