Mathematics (Arithmetic, Algebra, Trigonometry and Calculum), Physics and Chemistry are taught at home and online. Overcoming your difficulties with personalized advice, the methodology used is according to your needs. Primary, Secondary and University. Preparation for tests Knowledge and Examinations of admission to Universities. Studies of Chemical Engineering at UIS, Lic. in Chemistry at U. Pedagogical and more than 25 years in Teaching support the experience. Communicate with Manuel Martínez to the cel. (WhatsApp).