About Us
Hi, I’m Mike Estela. I am a secondary math teacher and undeniably, I LOVE Math. As an educator, I am passionate about creating free math tutorials and lessons to assist students with their math studies. The purpose of this website is to cover introductory, intermediate, and advanced algebra topics.

I teach math by exposing students to multiple types of problems based on the same topic or skill that have varying levels of difficulty. Whenever necessary, I include step-by-step instructions, diagrams, and illustrations. Each lesson is intended to be practical or informal in nature, making it more conversational, which makes it less intimidating for students or adults. It is my hope that you will find this math website helpful in your math journey. If you find any typos or errors, please let me know so I can correct them as soon as possible. Please feel free to contact me by email at contact(at)chilimath.com. Thanks a lot!
For teachers and homeschoolers, I have an online math store offering elementary and secondary math teaching resources. My goal is to help my fellow teachers save time by creating teaching resources so that they can focus on what they do best – that is teaching, guiding, mentoring, and inspiring children. To contact me about my online store, please email tpt(at)chilimath.com.

New Math Website
As a side hobby, I also started a new math website this year (2022). The site is called Algebra Corner. The math lessons are shorter and easier to understand. To learn a specific skill or topic, we don’t always have to go through lengthy and intensive lessons. The goal is to learn the core as quickly as possible so that we can move forward. That’s how I’m approaching my new project!
This is a new site, so there aren’t enough lessons yet. However, I want to produce more content as quickly as possible without compromising quality. Please feel free to contact me at contact(at)algebracorner.com if you have any ideas or suggestions.
Sincerely,

- BS Mathematics, Chadron State College, summa cum laude (2009)
- Post-Baccalaureate Teacher Preparation Program – Mathematics Education, Western Governors University (2011)
- MA Math Education 5–12, Western Governors University (2014)
- Associate of Applied Science in Mechanical and Electrical Technology, Community College of the Air Force (2004)
- Served in the United States Air Force Active Duty. Ellsworth AFB, South Dakota (2002-2008)
Professional Development
edX Verified Tracks:
https://courses.edx.org/certificates/15cff71e14be45739a2ffacb2be91221
https://courses.edx.org/certificates/10b8efe1d47e46b795d8544087d6812f