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Manhattanville College (Biochemistry Math)
New York University Courant Institute (Master's)
I came back to the United States after living most of my early life in the Dominican Republic in order to pursue post-secondary studies in the physical sciences. I majored in biology, chemistry, and mathematics at Manhattanville College and graduated with departmental and Summa Cum Laude honors. I recently completed my Master's thesis on imaginary quadratic number fields as a mathematics graduate student at New York University and will be applying to Ph.D. programs for the Fall of 2017 to continue research in either abstract algebra or mathematical logic.
In the meantime, I work as a tutor in math, science, Spanish, and English as a Second Language. I have been tutoring for the past 10 years and have helped over 600 private tutoring students reach their full academic potential. Overall, I calmly and actively seek to fill the gaps in understanding my students may have in our typical ninety minute sessions. I emphasize practice, practice, and more practice when it comes down to math problems. I also love to point out and ask my students why a certain formula or process is rigorous and accurate. I relish the logic behind mathematical proofs and wish to help my students appreciate the unique elegance of such a demonstration. Similarly, when working on chemistry word problems, I work out an example or two and then encourage my students to emulate what I did. I also quiz them throughout the sessions. For instance, if functional groups are being studied, I ask them to explain why amines have lower boiling points than alcohols with similar molecular and structural formulas. If pressed for a hint, I tell them to consider the respective differences in hydrogen bonding. Additionally, as a native Spanish speaker, I am fully aware of the difficulty of learning languages and know what students need in order to remain interested as they start rolling their R's or memorize stem-changing verbs. Regardless of the subject I am tutoring, I remind students regularly that preparing index cards will make studying much easier by helping them collect and organize key diagrams, formulas, and definitions in a convenient, portable format.
My clients know they can count on me for constant help with their coursework as my sessions provide a relaxed learning environment that bolsters their understanding and accomplishment. Over the years, I learned patience and empathy are the most important contributions I can offer to enhance my students' learning experience. Required courses in high school and college can be uninspiring or fast-paced, and the amount of material that needs to be mastered by the final exam date is overwhelming. Tutoring sessions help students overcome these frustrating circumstances by focusing the pupil's attention on the important details; on the patterns and commonalities present in the concepts, the notes, and the assigned problems; and on the study skills they will need to eventually become self-learners. As such, I also encourage discussion with and continuous feedback from my students so as to make sessions engaging and to fully develop motivation and analytical thinking.
Sessions are always at least 60 minutes in length. To avoid any confusion, my cancellation policy is the following:
*if you contact me at least 24 hours prior to a scheduled session to cancel or reschedule, no fee will be assessed;
*if you cancel or wish to reschedule the day of the session, I will assess a fee equivalent to one hour's worth of tutoring.
These are honors and awards I have received:
SACNAS National Conference Travel Scholarship (10/2008); Summa Cum Laude (05/2008); Manhattanville College Board of Trustees Scholarship (09/2004-05/2008); Dean’s List (09/2004-05/2008); POLYED Undergraduate Award in Organic Chemistry (04/2006); American Chemical Society and CRC Press Freshman Chemistry Awards (04/2005); and Valedictorian (06/2004). I came back to the United States after living most of my early life in the Dominican Republic in order to pursue post-secondary studies in the physical sciences. I majored in biology, chemistry, and Read more
I will assess a fee equivalent to one hour's worth of tutoring at my default hourly rate if I do not receive 24 hour advanced cancellation notice.
Stefano is a life saver. He was very patient, very flexible in his availability, and got right to the point. I went from fearing I would fail my class to getting a 98.58% in just a few weeks. Without Stefano, I would be trying to retake Calculus over again. Great job! I highly recommend Stefano to everyone.
Alex is doing very well working with Stefano. Algebra two grade has definitely improved. We are still having problems with Spanish 4, but that has more to do with Alex not being timely with turning work in and the teacher taking points off. Alex now has the attitude that he is just going to fail Spanish and there is nothing that we can do about it. I think he has unfortunately had some teachers that have not been able to pick up on his real needs and he has just slipped through the cracks. The public school systems is not perfect for all, and for Alex with Spanish this is the case, never the less, as I have said to him, we must get through this school year and try not to fail. He does not want to accept the fact that it does make a difference to get the homework turned in and turned in on time. Maybe Stefano could help him understand the importance of turning homework in on time, that it does make a difference.
There aren't enough words to describe how happy we are with Stefano as a tutor. My daughter recently used him for her college Calculus class and he exceeded our expectations. My daughter took Calculus over the summer and had never had Pre-Calculus, so she knew the class would be difficult. She was hoping for the required "C" in the class to get the transfer credit. Stefano was so encouraging and told her she could do better and was right! She got an "A" in the class thanks to him (and her hard work). Stefano was extremely patient and encouraging, which built her confidence. Not only did he know the material but more importantly, knew how to explain it to her in a way that she understood. I always received detailed feedback on the material they covered which explained her strengths as well as areas she needed to work on. Every time I contacted him, I heard back from him within an hour. It was obvious he genuinely cared and wasn't just doing this because it's his job. My daughter has used a lot of math tutors through the years and he is one of the best! I would highly recommend him.
My son was struggling this year but was reluctant to get help. He was having trouble getting his work done and turned in on time. We finally convinced him to try tutoring. Stefano has done a wonderful job with our son. He was able to explain the concepts he needed to get through math and chemistry assignments. He is extremely patient and always on time. Our son has chronic health issues that make it difficult for him to concentrate. Stefano was very understanding and kind about this. Last semester without Stefano, our son was only able to get the minimum amount of work done to pass. With Stefano's help this semester, he turned in almost all of his second semester work, even in the subject that Stefano wasn't tutoring him in. Stefano helped him get back on track and have a far more successful end of the school year. It was a great relief and he couldn't have done it without Stefano's help. We highly recommend him and are so grateful that he was able to make such a difference for our son.
My son was very pleased at how patient and thorough Stefano was in explaining and reviewing concepts. I feel confident that he will do much better in his college algebra course.
Thank you, Stefano! My son's grade in his algebra course has improved immensely since you began working with him. You are obviously a very gifted tutor.
As a parent, we were very pleased with the result of Stefano's tutoring of our daughter Lena. She finished out the Summer Course in one (1) month with an "A", an equivalent of a full-year of High School Algebra-2. This enabled our daughter to raise her grade significantly. We are very grateful for Stefano's demeanor and his ability to get results. His knowledge and teaching very exemplary. Our daughter Lena gives Stefano a "Thumbs Up!" We would recommend Stefano anytime as a Tutor. Thanks WyzAnt.
Stefano is a great tutor! He is very knowledgeable about the Spanish language, and different cultures where Spanish is spoken. He is easy to talk to, he never makes you feel uneasy if you make a mistake, and he is on time.
Stefano C. has been tutoring my son for the ACT. My son initially had reservations regarding working with a tutor. Stefano was kind and patient and really put my son at ease. Stefano provided a full analysis of where my son stood in light of his most recent ACT score. He did not sugar coat it... he said there was a lot of work to do in a very short period of time. According to practice test, my son's individual ACT subject scores have improved and I know it is a result of Stefano's individualized lesson plan and attention to detail. I highly recommend Stefano for your ACT tutoring needs! I am looking forward to my son's ACT results in June.
Stefano is very PATIENT, THOROUGH and PUNCTUAL. His passion to help shows as he appears to love what he helps with. His Algebra II (even trig) skills are out of this world. Definitely the best tutor ever. We couldn't say enough. Thank you. You have been a life saver and the 97% test score proves it!
Stefano has helped our son with Honors Geometry. Stefano is always punctual and willing to continue working with our son each week until the material is understood. Stephano identified that our son was weak with regards to having the geometry theorems memorized and at his fingertips. They worked on making and reviewing flash cards. Stefano had clear and definite expectations of what he expected our son to work on from one lesson to the next. Our son felt overwhelmed with HGeom. The first quarter of the school year, 71%. Our son's confidence level has increased markedly. His grade is now 88%. Thank you Stefano!!
He came on time and had flexible hours. He was very patient with me when I was trying to understand my material even though it took me a while to grasp and you could tell he knew his stuff! Very smart guy and very helpful! I Definitely recommend him to everyone.
One of the best characteristics about Stefano is his patience, I am highly ADHD with poor skills in basic math and thought yet again I was going to fail Business Calculus but then I found Stefano, and things have changed. I'm not the studious type but he challenges me to understand the meaning behind the rules and the things that we do which better helps me understand why I am doing what I'm doing which to me helps a lot because to me they were just rules and guidelines you do just because that's the way the teacher told us to do it. Stefano is not the first tutor Ive had, actually I've had more than I can count but he easily is probably the best one I have ever had and wee worth the money! Way better than failing and repeating again. Try him out and you won't be looking for a tutor long.
Stefano has been very helpful to my daughter with Calculus and ACT preparation. Her confidence level has risen as well as her test scores. He is prompt and works around her busy schedule. For Calculus, Stefano has helped my daughter prepare for tests and complete homework assignments. For ACT prep, he has given her techniques, strategies and helpful tips for taking the test.
Added 11/2/12 My son got an 88% on his written test - the highest grade he's had the last two years!!
Added 10/12 My son has been working with Stefano for 2 weeks now and is already improving his conversational skills. Stefano is reliable, punctual, and flexible & we will be continuing our sessions with him.
My son is in Honors Chemistry 1910H at Ohio State. This is a challenging course, with many deep concepts.
Stefano was very much on top of the material, and did a great job explaining the concepts, and was
honest and straight forward about the challenges the course presented. I plan to continue to use him
as my son's tutor, and I would definitely recommend him to anyone who needs some help with a
challenging science course. I might add, I was very much impressed with the way he took time to communicate with me and kept me informed about my son's tutoring session.
Stefano is great because he has a plan and process for how to work with you towards your goals. He does well explaining the correct uses of the words and phrases as well. Throughout the tutoring process he continues to force you to pronounce the words correctly this enables you to leave everyday significantly better than where you began. Without his help I definitely would not be able to communicate nearly as well as I can today.
Stefano was a patent, methodical, and knowledgeable tutor. I was quickly able to adapt to my needs as a student. The Skype function of online tutoring is just as good as one-on-one tutoring. I would recommend Stefano for any level of math tutoring! He has truly helped me turn this semester around.
Stefano has helped me achieve high scores in my multivariable calculus course with is required for my biomedical engineering degree at the Ohio State University. He is an exceptional tutor and has made every effort to help me succeed in my classes. He is very patient, well spoken and considerate and he is a joy to work with. I would recommend him to anyone looking for a high quality math tutor who is committed to success. His versatile teaching skills and broad range of mathematical knowledge make him a valuable asset to any student struggling with math concepts.
Stefano arrived on time and got right down to business. He is very knowledgeable and can explain difficult calculus concepts in simple terms. He took the time necessary to assure all aspects of the problems were understood. After getting D's and F's on all the quizzes, I was able to get an A on the test the day after meeting with Stefano. That pretty much says it all.
I have been extremely pleased with the level of service Stefano provides. The simple things like being on time he is every time which is greatly appreciated. The more complicated things such as identifying the areas of concern and working with the student so the student understands the problem resolution steps and is not just "given" the answer. I will definitely use his services for my other 2 children when the time comes for ACT prep. Thank you Stefano!!
I cannot recommend Stefano highly enough! My daughter, a senior in H.S., had received a low-point score in Math for her ACT test. We met with Stefano at the initial complimentary meeting and went over our concerns and our wish for a 4-point improvement in her overall Math score. He remained focused on our mutual goals from the first session and has advocated a rational approach to the test-taking with proven skills to help her improve her test score. He also provided her with half-a-dozen theorems that gave my daughter the tools to tackle each question. She took the ACT test again this weekend and feels confident in achieving the desired higher score in Math. Stefano is professional, literate, and very knowledgeable in the subject matter. The money, time and effort were well spent!
I would highly recommend Stefano as a tutor. He has been instrumental in helping me to improve my science knowledge. I have had other tutors before for this same subject and know first hand that just because an individual offers their services does not necessarily mean that they have the ability to teach/convey subject matter to a student.
Stefano is honestly the best tutor that I've ever had for Math. I'm currently taking a Calculus 2 course and have struggled with math my whole life. After meeting with Stefano I've currently have an A in the course which shows just how useful he is. He is very patient and he has the ability to explain things in many different fashions until you understand the material. Would highly recommend him as a tutor.
I have worked with Stefano for my two quarters of Chem 101 and 102. He has helped me tremendously with my chemistry vocabulary, application, math, etc. He is very patient and kind. Always paying attention to whats going on in my classes and helps to explain it in a way that I understand. He is very good/understanding about my scheduling needs and is always prompt.
Stefano gave my son the right tools to use for Algebra. He goes over each and every section so that my son understands what steps to take for difficult problems. When I spoke with my son's teacher she realized that he was actually understanding the process and asking good questions regarding his homework. I told her about the tutor and she agreed that the methods being used were very effective. I am glad that I found him through WyzAnt!
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I was trained to tutor in ACT prep through my work as a former tutor and test prep instructor for StudyPoint, Inc. and The Princeton Review, Inc., respectively. I have tutored several students independently in New York City and in Columbus, OH for the ACT after I finished my Master's degree. Since I am a math and science tutor, I usually get tutoring requests for the math and science portions of the exam from local high school students. The City College of New York also uses a modified ACT as an entrance requirement, and I have successfully tutored students that wanted to gain admission as transfers from schools outside the United States. Until now, I had only received requests from my regular algebra students, who contacted me for help with their classwork or needed a refresher, but I can develop individualized test prep sessions for students interested in preparing for the ACT, as a whole or just the math and science sections.
I was trained to tutor in ACT prep through my work as a former tutor and test prep instructor. I have tutored several students independently in New York City and in Columbus, OH for the ACT after I finished my Master's degree. Since I am a math and science tutor, I usually get tutoring requests for the math and science portions of the exam from local high school students. The City College of New York also uses a modified ACT as an entrance requirement, and I have successfully tutored students that wanted to gain admission as transfers from schools outside the United States. Until now, I had only received requests from my regular algebra students, who contacted me for help with their classwork or needed a refresher, but I can develop individualized test prep sessions for students interested in preparing for the ACT, as a whole or just the math and science sections.
As an experienced tutor and honor's math major, I am well acquainted with the material covered in algebra and prealgebra courses. I have also taught algebra I to adult students at career colleges and middle and future high school students in summer enrichment programs. We usually go over: arithmetic of real numbers; fractions, decimals, and percents and related word problems; exponents, powers, and roots; order of operations; functions; solving linear and quadratic equations; graphs of linear equations and their different forms, including slope-intercept, point-slope, and standard form; inequalities; systems of inequalities and equations; polynomial addition, subtraction, multiplication, and division; and factoring in all of its forms.
As an honors math major, I am well-acquainted with all levels of high school math. In particular, I can help Algebra 2 students with: graphs and solutions of linear and quadratic equations and inequalities; expressions, functions, and inequalities involving roots, ratios of polynomials, radicals, and complex fractions; factoring using theory of polynomials; conic sections; combinatorics; matrices; systems of equations and inequalities; inverse functions; and exponential and logarithmic functions and related problems.
I majored in biology and took several upper-level lab courses at my alma mater. In addition to Principles of Biology, which covers the basics of molecular and environmental branches, I took courses in biochemistry, molecular cell biology, microbiology, anatomy and physiology, invertebrate zoology, marine biology, and cell culture techniques. A few years have passed since I finished my biology research and decided to focus my graduate studies in pure mathematics, but I still find the material interesting. I can definitely help honors and introductory biology students focus their studies.
I have tutored students in Calculus I through IV at Ohio State and Columbus State. I also tutor AP Calculus AB and AP Calculus BC students. I am well acquainted with the following textbooks:
*Calculus by James Stewart;
*Calculus by Ron Larson, Bruce H. Edwards;
*Calculus by Dale E. Varberg, Edwin Joseph Purcell, Steven E. Rigdon.
I can also help with advanced calculus and introductory real analysis courses.
I have tutored college and AP chemistry students since 2005. I currently help advanced high school students in the Columbus area . Over the last few summers, I have also helped students at Colgate University, Long Island University, The Ohio State University, and Columbus State Community College with their coursework in general/introductory chemistry. I can also help with organic chemistry, but I may need to review the material as I usually only tutor it once a year, depending on demand.
Since I was a math major, I had to master elementary math before moving on to advanced proofs. I am patient and will help you learn the material with ease if you put in the time and effort. Practice makes perfect.
I enjoy helping students with geometrical proofs. You have to make sure each statement logically follows from those preceding them. Geometry is a great course in which I can help students explore the concepts of congruency and similarity of figures in the plane as well as 3-dimensional space. We also get a chance to study problems related to distances, areas, and volumes while also learning about symmetry transformations. The properties of circles, quadrilaterals, and triangles are fascinating, and with plenty of practice problems, students will learn to appreciate that fact.
I have plenty of experience performing Gaussian elimination and calculating determinants. I also know how to find the eigenvalues and eigenvectors of a matrix or linear transformation. I also have experience working with unitary, symmetric, skew-symmetric, and other types of matrices. Working with the theoretical aspects of fields and vector spaces are actually my favorite aspects of this subject. I am familiar with some applications and the basic uses in coding theory. Nonetheless, I lack solid programming experience for numerical analysis applications.
As part of my math major requirements, I took an upper-level course in mathematical logic as an elective and got an A. I only lost a fraction of a point on a midterm for not citing a theorem from lecture; otherwise, I would have gotten perfect score in the class. I love constructing formal proofs using a first order language and predicate calculus. Deducing that a statement is true as a consequence of the rules of inference applied to a set of axioms is most entertaining. I doubt most students go beyond truth tables and naive set theory, but I can help them out with those as well.
I have helped dozens of middle schoolers and students in junior high with prealgebra in Pickerington, Reynoldsburg, and Columbus, OH. I have also tutored prealgebra students in Westchester County, NY. Moreover, several of my students have now successfully completed honors algebra courses and higher.
I work with students by covering all their gaps, and then, through practice, practice, and more practice, they eventually master the routine calculations, recognizing underlying patterns, and are able to solve a myriad of related problems.
I can help students with analytic geometry; families of functions and their graphs; compositions of functions; inverse functions; polynomial, rational, exponential, and logarithmic functions with applications to the physical and social sciences; trigonometry and its many applications; systems of equations and inequalities; sequences, induction, counting, and basic probability; matrices and determinants; partial fraction decomposition; vectors as well as their dot and cross products.
I worked as an SAT Prep instructor for The Princeton Review, Inc. as a junior and senior in college. I also helped several students in Westchester County, NY with their SAT Math Level I and II subject tests. My private students who meet with me one-on-one for several sessions normally score 700 or higher on the math sections of these standardized tests.
I am a native Spanish speaker who completed bilingual elementary and high school education in the Dominican Republic. I am completely fluent as I can read, write, and speak in Spanish. In terms of academic units in the US, I also scored 80/80 on the College Board CLEP exams in Spanish and earned 12 college credits equivalent to 4 semesters of introductory and intermediate Spanish necessary for my alma mater's general education requirements. In Ohio, I have tutored students from the Pickerington, Reynoldsburg, and Columbus high schools. In the past two years, I have also helped 5 adult students in the area with their conversational Spanish skills for their trips to Peru and the Caribbean. I also translate legal and technical documents from English to Spanish and from Spanish to English.
I enjoy the algebraic aspects of manipulating expressions with trigonometric functions. I love proving identities; ever since I took my first lessons in trigonometry in high school, I can't get enough of these types of problems. Since I took Calculus, Differential Equations, Complex Variables and Abstract Algebra later on, my fondness for trigonometry has not dwindled, but grown. Transformations (by doing shifts, reflections, and dilations/contractions) and periodicity are also very interesting, but I have to spend some time explaining the symmetries and movements to students. Nonetheless, I must admit that I hate graphing polar equations. I had to do the graphs by hand without polar graphing paper, and it takes me forever to make a neat graph. Solving trigonometric functions is an exciting challenge since you have to be wary of the constraints imposed by the domain of the inverse trigonometric functions and the families of angles before you can write down the primary and general solutions. This is especially useful in calculus, differential equations, and complex variables.
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