DeltaSeven Math Tutoring — Phillip Krzankowski
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Math Tutor in Northbrook, IL

Looking for a math tutor in Northbrook? My name is Phillip Krzankowski and I'm a former high school math teacher with 14 years of classroom experience and a Master's degree in Mathematics Education from DePaul University. I provide 1-on-1 tutoring for Junior High, High School, and College students throughout Northbrook and the surrounding area.

Whether your student needs after school tutoring in Northbrook, homework help with tonight's assignment, or test prep for the ACT, SAT, or an upcoming exam, every session is custom-built around their exact needs — no canned worksheets, no cookie-cutter curriculum.

CALL OR TEXT: 224-343-8086 Text me for the quickest response!

WHY ME?

Unlike large tutoring centers in the area, I provide genuine 1-on-1 attention — no group sessions disguised as private tutoring, and no package upsells.

I am a 14 year veteran of high school classroom teaching and deeply familiar with the curriculum, pacing, and expectations students face at Glenbrook North and Glenbrook South High School, two of the top-rated high schools in Illinois.

WHAT PEOPLE ARE SAYING
Phil is an amazing teacher. From laser pointers to marshmallows, he knows how to make math come alive. My child was extremely reluctant when it came to math, now she makes huge progress each time she meets with Phil. He truly cares about his students and has a gift for connecting with them.
— Megan, South Elgin
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Phil was great to work with and explained math concepts to my son in a way that connected with him. My son improved his math grade to B+ from D+. Definitely recommend Phil.
— Peter, Barrington
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We are very happy to have found Phil. My 15yo son will be starting public high school after 10 years of homeschooling, and we wanted to make sure he could seamlessly transition into the school's math classes. Phil's tutoring has been invaluable: he evaluates strengths and weaknesses. He communicates thoroughly with parents. He comes to sessions prepared with an arsenal of exercises, sample problems, and ideas to get my son thinking. No doubt his background as a teacher has given him many of these skills, but it has also made him a wealth of insightful advice to us as parents. Beyond this, he takes the time to get to know my son as a person with interests and aspirations, not just a client.

Phil responds quickly to texts and emails, and is flexible with scheduling dates, times, and locations. I would wholeheartedly recommend his services to anyone who needs them, whether they are struggling to pass a class, need help with test prep, or just want an evaluation and advice. Thanks Phil!
— Mary, Sleepy Hollow
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It has been such a great experience working with Phil! My daughter has shown significant improvement since starting Algebra tutoring and we're so grateful for Phil's patience, attentiveness and communication throughout the process.
— Melinda, Hoffman Estates
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We love Phil. He is the BEST. He is patient, supportive, and explains concepts in a way that truly helps my daughter understand and feel more confident. He is also very communicative with me and always willing to take the extra step to help, whether that means checking in, offering feedback, contacting the teacher or providing additional support when needed. I would highly recommend him to any parent looking for a dedicated and effective math tutor.
— LL, Bartlett
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Was getting ripped off at Mathnasium. Phil tutors my kid longer and for less money. Plus he has a Master's degree! Simply the best!
— Yazan A, Barrington
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Vacation went long and my kid fell behind. Phil showed up and tutored Brandon 3 nights in a row so he could pass the class. Dude is solid. Thanks again!
— Kevin H, Lombard
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Phil is a pro! My son's scores are up and doesn't complain about math anymore. Phil's session notes are very helpful insight into what my son is learning. Highly recommend.
— Bill C, Barrington
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Phil is awesome!! Sarah's Geometry grade went from a C- to a B+ after a month of tutoring! My daughter really likes the study sheets Phil makes at the end of every session. Thank you!
— Anne B, Elgin
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Daughter needed a good grade on the final to pass the class. Phil came and helped her study for an hour and a half the night before, and she did great on the test and passed the class! Very personable and funny as well, which definitely helps with a 14 yr old.
— Joe S, Schaumburg
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SCHOOLS & DISTRICTS SERVED

Glenbrook High School District 225
Feeder Districts (K–8)

* Meeting location: Northbrook Public Library (1201 Cedar Ln.)

SUBJECTS

RATES

My week runs Monday–Sunday.

CONTACT

NEARBY AREAS

Last updated: July 2026