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Sergio A.

Math, Spanish, French

Louisville, CO (80027)

Travel radius
20 miles
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Sergio A. passed a background check on 6/5/14. The check was ordered by another user through First Advantage. For more information, please review the background check information page.

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Finally putting my job aside to pursue my passion, I left engineering and completed both a Math degree (Dean's list) and a secondary math teaching license in 2013. I tutored my way through school and students, at a minimum, raised one letter grade. Most importantly they gained an appreciation of learning how to think, as I guide them through a process of understanding. Having taught in various middle and high school classrooms for the last four years, I understand what a teacher requires, what is important in a lesson and what will most likely be tested.

I am fortunate to have gained industry experience to provide multiple representations students use to make sense of it all and answer the question, "why do I need this??" I am also qualified to teach Spanish and French in Colorado schools. A broad view has helped to connect to my students through multiple representations. I incorporate my experience in industry, language and world travels to make the lessons fun and the concepts easy to grasp.

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Sergio’s subjects

ACT Math, Algebra 1, Algebra 2, Calculus, Discrete Math, Geometry, Prealgebra, Precalculus, Probability, SAT Math, SPSS, Statistics, Trigonometry
ESL/ESOL, Public Speaking, TOEFL, Vocabulary, Writing
AutoCAD, Microsoft Excel, Microsoft PowerPoint, Microsoft Word, QuickBooks, SPSS
ESL/ESOL, French, Spanish, TOEFL
European History, World History
Salsa Dancing
Salsa Dancing
Elementary Education:
Elementary (K-6th), Elementary Math, Elementary Science, Vocabulary
Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Public Speaking, QuickBooks
Algebra 1, Algebra 2, Calculus, Elementary (K-6th), ESL/ESOL, French, Geometry, Physics, Prealgebra, Precalculus, SAT Math, Spanish, Statistics, Writing
Test Preparation:
ACT Math, ASVAB, LSAT, Praxis, SAT Math, TOEFL
Salsa Dancing, Soccer, Table Tennis, Tennis
Corporate Training:
ESL/ESOL, French, Microsoft Excel, Microsoft Word, Public Speaking, Spanish, SPSS, Statistics

Algebra 1

Having taught Algebra I at the high school level and having taken a graduate level Algebra methods course have helped me build a repertoire of tools that students use to become proficient. Each learning path is unique, but the pyramid of knowledge, from the informal to generalized or abstract concepts, must be built. To this end, I strive to use multiple representations so the student can apply this knowledge.

Algebra 2

I have a Math degree from the University of Colorado and I have also taken a graduate level course in teaching methods for Algebra from the University of Colorado, which has helped to build a repertoire of tools that students can access to become proficient in the subject. As each student's learning is unique, it is vital for teachers to understand the pyramid of knowledge from the informal to generalized or abstract concepts, and be able to apply this knowledge using multiple representations.


If not here, where else am I to brag about receiving the top grade in my class at CU Boulder? A fundamental knowledge base in my career as an engineer, Calculus finally puts together useful math on a vast number of professions. I realized the gaps in math education and obtained a BA in Math to complement my secondary math teaching license. After some years of tutoring, Calc has become my favorite subject!

Discrete Math

I am currently highly qualified to teach secondary math in Colorado, and obtained a B+ in Discrete Math from the University of Colorado, Boulder.


I ran a company called English in Boulder, and I taught English to students from Colombia. As a Secondary Math teacher I also studied the SIOP model for ELL.


I have taught Geometry at a local High School, which has helped me to understand student's challenges with the subject.

Mechanical Engineering

I have a Bachelor of Science degree in Mechanical Engineering from the University of Colorado, Boulder.


I have taken the Praxis as a prerequisite to becoming highly qualified to teach math in Colorado. I have HQ status since 2010.


Having taught 7th and 8th grade math using Common Core standards (Thunder Ridge Middle School, Centennial) revealed the knowledge gap most students experience. I have learned multiple models to explain concepts that accommodate various learning styles.


I tutored PreCalc in the Ozone program at Boulder High and have continued doing so for the last five years. It is a subject that spans the entire spectrum of Math in High School, and it has been a real treat to help students understand the big picture.


As the treasurer for the Boulder-Nablus Sister City Project, a 501(C)(3) organization, and having obtained A's both in Finance and Accounting from Regis University, and having spent hundreds of hours using QB Online and calling their help line, I feel rather qualified to help others.


I learned soccer in South America and played in Men's League in Boulder, CO. I was also the lead coach for Junior Varsity at Skyview Academy in Thornton, CO.


I am well versed in using Excel for the business school Core Stats class. As a math major, I have taken Stats through the math dept at CU and a graduate methods Stats class from the Math Education curriculum. I have also tutored it for a year at a high school and given private lessons for the last two years.

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University of Colorado (Math B.A.)

Secondary Math Education Teaching Certification (Other)

B.S. Mechanical Engineering (Other)

Lifesaver for us! My son was struggling with Advanced Pre-Calc. Within a month's time Sergio helped him pull his grade back up to a C, as he started to get B's and C's on his tests. My son is feeling much more confident and is hoping to get a B next semester. Sergio is very patient and is flexible with his scheduling. We even did two days of tutoring (back to back) in preparation for the final and that was a huge ...

— Peggy from Louisville, CO on 12/23/12);

Hourly fee

Standard Hourly Fee: $50.00

Cancellation: 3 hours notice required

Travel policy

Sergio will travel within 20 miles of Louisville, CO 80027.

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