Ivan Retamoso

Picture of Ivan Retamoso

Assistant Professor

EMAIL: iretamoso@bmcc.cuny.edu

Office: S-642D

Office Hours: Friday 6:00pm to 7:30pm via ZOOM

Phone: +1 (212) 776-6432

Dr. Ivan Retamoso holds a Ph.D. in Mathematics from The Graduate Center of New York and a Masters Degree in Mathematics from The City College of New York.

Before joining the Mathematics Department at BMCC, Dr. Retamoso taught Mathematics and Statistics at several CUNY Colleges, mainly at Baruch College, Brooklyn College, The City College of New York, and Kingsborough Community College. His main research interests are in Computational Mathematics, Polynomial Root finding Algorithms, and Teaching Mathematics using OER/ZTC with Technology.

Dr. Retamoso speaks English and Spanish fluently and enjoys meditation in his spare time.


Computational Mathematics, Algebraic and Numerical Computation Algorithms, Polynomial Roots Approximation via Dominant Eigenspaces, Isolation of Real Roots, Structured Matrices, Cayley Maps, Rational Matrix Functions, Random Matrices, Computer Algebra.


Ph.D. Mathematics.

The Graduate Center of New York.



Thesis Advisor: Victor Pan.

M.A. Mathematics.

The City College of New York.

B.S. Industrial Engineering.

Pontifical Catholic University of Peru

Courses Taught

Research and Projects

I have created websites for all courses that I teach.


Since Fall 2019, I have been using for all courses that I teach:

Zero cost OER Textbook from openstax.org

Zero cost WEBWORK Homework system.

Zero cost Homework system from: http://helpyourmath.com/immersion/homework

It is my intention to help students learn Mathematics regardless of their financial status.


I am an ACCCESS Fellow member of the sixteenth cohort of AMATYC Project ACCCESS.

I am a Faculty Fellow for the Opening Gateways Faculty Seminar.

Professor Retamoso’s YOUTUBE channel



“Perfecting” Leonardo da Vinci diagram  MATHEMATICS TEACHING RESEARCH JOURNAL Vol 12, no 4 WINTER 2020/21

Heuristic Method for Minimizing Distance without using Calculus and Its Significance MATHEMATICS TEACHING RESEARCH JOURNAL Vol 14, no 4 FALL 2022

Honors, Awards and Affiliations

I am an active member of MAA and AMATYC.

BARS Certificate of Appreciation


NCSM 2020 Virtual Conference, March 30

NCSM 2020 Virtual conference, March 31

Introduction to Data Science Certificate of Completion

Learning to Teach Online Certificate of Completion

Flipping the Classroom Certificate of Completion

Creator Fest conference, Spring 2020 by OpenStax, Rice University

“Give Your Online Course that In-Class Feel” Certificate of Completion

“Tips and Strategies for the virtual shift of face-to-face Math classes” AMATYC Spring 2020

CUNY Online Teaching Essentials Certificate of Completion, June 30 Summer 2020

RESILIENT TEACHING Certificate of Completion, July 2020

ACUE Micro-Credential in Promoting Active Learning Online, November 2020

Improving Student Collaboration, Engagement, Motivation, and Learning

THRIVE Technical Assistance Program Certificate of Achievement

Professional Development and Department Issues in a Pandemic

BMCC SafeZone Training Certificate, April 2021

MOTIVATING LEARNERS COURSE: STARTING STRONG Certificate of Completion, January 2021

Supplemental Instruction Certificate, June 8th, 2021

AMATYC Project ACCCESS as Fellow in Cohort 16 (2019-2021) October 30, 2021

Presenter Certificate AMATYC 2021

Certificate of Completion Data Science Workshop, January 18th to January 21st, 2022

Certificate of attendance webinar Foster a Culture of Belonging Campus-wide

Coaching for Success (AMATYC) Certificate of completion January 23-February 17, 2023

Additional Information

I gave a talk for the Mathematics Colloquium at BMCC on spring 2019.

I submitted a solution to problem 2061 in MAA Mathematics Magazine It was accepted and recognized as a correct solution.

I presented: Teaching Mathematics using OER, ZTC, and Technology, now we can!” at the CUE Conference/OER Showcase in Spring 2020.

On April 7th, 2021

I presented: “Perfecting” da Vinci diagram

At The 6th Annual Mathematics Day @ Hostos Community College

Agenda 6th Math Day Spring 2021

I submitted a solution to problem 2102 in MAA Mathematics Magazine.It was accepted and recognized as a correct solution.

On October 15th, 2021

I presented at The Third Annual C2 Summit For Pedagogical Advancements In STEM Conference.

Presentation title:  Embedding YouTube videos in WeBWorK Homework Problems

STEM Summit program 2021

On October 30th, 2021

I gave a Poster Presentation in AMATYC 2021 Conference, Phoenix Arizona.

On March 30th, 2022

I was a panelist at 7th Annual Mathematics Day @ Hostos Community College

The Role of Mathematics Education in a Person’s Life.

I submitted a solution to problem 2126 in MAA Mathematics Magazine It was accepted and recognized as a correct solution.

On November 18th, 2022

I gave a Presentation in 48th AMATYC Annual Conference, Toronto Canada.

On December 3rd, 2022

I gave a Presentation in Virtual Days of the 48th AMATYC Annual Conference.

Using OER to Teach Calculus Fairly and Efficiently

I submitted a solution to problem 12269 in MAA The American Mathematical Monthly. It was accepted and recognized as a correct solution.