Dominion Onyejiaka
Results-Driven Mathematics Tutor (Grades 5–College) | Algebra, Trig, Calculus | Exam Prep & Confidence Boost
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Dominion Onyejiaka
Bachelors degree
/ 55 min
Dominion - Know your tutor
I’m Dominion Onyejiaka, an experienced online math tutor with 3+ years of teaching students across multiple grade levels, from elementary foundations to high school and first-year university courses. I’ve supported learners in Algebra, Geometry, Trigonometry, Pre-Calculus, and Calculus by breaking concepts into clear, step-by-step methods that build real understanding (not just memorization). My sessions are personalized to each student’s goals, whether that’s catching up, getting ahead, or preparing for quizzes and exams, with targeted practice, guided problem-solving, and frequent check-ins to track progress. I use exam-style questions, timed drills, and “teach-back” techniques to strengthen confidence and accuracy. Students and parents appreciate my patient approach, structured lesson plans, and practical strategies that make math feel simpler and more manageable.
Specialities of your tutor
Advanced Placement (AP) Program (USA)
State-Specific Standards (USA)
A-Levels (UK)
Math Tricks and Hacks
Common Core State Standards - CCSS (USA)
Mental Math
International Baccalaureate (IB)
Exam Simulation
GCSE (UK)
Homework help
Practice Drills
Next Generation Science Standards - NGSS (USA)
Student types for classes
Elementary School students
ADHD
High School students
College students
Home schooled
Anxiety or Stress Disorders
Middle School students
Class overview
My teaching methodology is structured, student-centered, and results-focused. I start by diagnosing what the student understands (and where the gaps are) using quick warm-up questions or a short skills check. Then I teach each concept using a clear step-by-step framework: explain the idea in simple terms, demonstrate 1–2 examples, and guide the student through similar problems until they can solve independently. I use active learning (the student talks through their steps), error analysis (we identify exactly why a mistake happened), and spaced practice to make skills stick. For exams, I run timed mini-quizzes, teach problem-recognition patterns, and show strategies for checking work quickly. I also create personalized practice sets and weekly goals, so students can track progress and build confidence over time. Tutor.
Test-ready in weeks
85% of students feel fully prepared for their upcoming exams.
Support beyond class hours
Parents appreciate the extra support for last-minute questions.
Focus on real-world applications
85% of students find math concepts more relevant to real-life problems.
Dominion also teaches
Algebra
Algebra 2
Arithmetic
Calculus
Calculus 2
Calculus 3
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15 days Refund
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Free Tutor Swap
Mathematics concepts taught by Dominion
The tutor and student focused on advanced algebra concepts, specifically the manipulation and simplification of radicals (surds) and their connection to exponents. They practiced various operations involving radicals and worked through Edexcel-style questions, with a plan to continue this practice in the next session.
Simplifying Radicals
Operations with Radicals
Rationalization of Denominators
Radicals as Exponents
The tutor and student worked through challenging geometry problems involving circle theorems and practiced simplifying radicals and expressions with surds. They also reviewed concepts of indices, with a plan to further explore radicals and volume of 3D shapes in the next session.
Rationalizing the Denominator
Radical Operations: Addition and Subtraction
Simplifying Radicals
Indices (Exponents) Rules
The tutor and student reviewed circle geometry theorems, practicing problem-solving techniques for angles within circles. They then transitioned to quadratic equations, focusing on the application of the quadratic formula and the crucial step of simplifying radicals, which will be further elaborated in the next session.
Angles in the Same Segment Theorem
Angle at the Center Theorem
Cyclic Quadrilaterals
Quadratic Formula
Simplifying Radicals
The Tutor and Student extensively practiced circle geometry theorems, including angles in the same segment, cyclic quadrilaterals, alternate segment theorem, and angles related to tangents and arcs. They worked through various problems, reinforcing the importance of providing justifications for each step. The next session is planned to cover quadratic formulas, bearings, and frequency tables.
Cyclic Quadrilaterals
Major and Minor Arcs Relationship
Angle Between Two Tangents Theorem
Tangent-Radius Theorem
Angles in the Same Segment
The student requested a session on circle theorems, and the tutor provided an introduction to the topic. They reviewed essential geometric terms and then explained several key circle theorems with examples. The session included practice problems to reinforce understanding, with further practice planned for the next meeting.
Circle Terminology
Angle at the Center vs. Circumference Theorem
Angles in the Same Segment Theorem
Angle in a Semicircle Theorem
Cyclic Quadrilateral Theorem
The student and tutor reviewed the Pythagorean theorem and then delved into the fundamentals of trigonometry using the SOH CAH TOA mnemonic. They practiced identifying sides relative to angles and applying sine, cosine, and tangent to solve for unknown sides and angles in right-angled triangles, with plans to cover word problems and sine/cosine laws in the next session.
Pythagorean Theorem
Trigonometric Ratios (SOH CAH TOA)
Using Trigonometry to Find Angles and Sides
Teaching tools used by tutor
Assessment
Practice worksheets
Presentations
Quizzes
Lesson Planner
Visualization & Exploration
Solvers & Calculators
Interactive lessons
Chat for quick help
Mobile joining
Note taking
Weekend lessons
Open Q&A
Math tutors on Wiingy are vetted for quality
Every tutor is interviewed and selected for subject expertise and teaching skill.