15 years standing in Nigerian classrooms — Nursery through Secondary. 12 deployed ML & EdTech projects. I did not build CBT Pro because I learned web development. I built it because I think clearly, observe deeply, and leverage AI to operate competently in any domain I enter.
For over 15 years, I have walked into Nigerian classrooms and taught. Not as a side job — as a calling. I have taught Nursery children counting for the first time, Primary pupils building number foundations, and Secondary students navigating JSS1 all the way through SSS3. I am currently based in secondary school. Across institutions in Lagos and Ogun State — His Marvellous Grace, Fredaks, Anchor Heights, Dave Model School, Lifeline, De Glorious College, Chrisville, Angel High School, God of Seed Academy, and others — I have taught Mathematics, Further Mathematics, Physics, Chemistry, and Computer Science. Thousands of students. Hundreds of exam seasons. Fifteen years of watching how understanding actually works — and exactly where it breaks.
Those classrooms gave me something no data science bootcamp can teach: the ability to observe where understanding fails, ask the question behind the question, and rebuild a concept from the ground up for someone encountering it for the first time. That instinct lives in every notebook I write and every model I build today. When I run exploratory data analysis, I am doing what I have always done — reading what the data is not saying out loud.
Long before I opened a Jupyter notebook, I had a burning conviction: the problems I watched every day in Nigerian schools — paper-based chaos, manual marking, zero visibility into whether students genuinely understood anything — could be solved with technology. That conviction sent me back to university as an adult to study Computer Science Education at Lagos State University, graduating in 2023. The practical, problem-solving capability I needed arrived in 2025 through the 3MTT programme.
What happened next is the part most portfolios leave out. I did not build CBT Pro because I learned HTML, CSS, and JavaScript. I built it because I think and observe clearly as a data scientist, and I leveraged AI to operate competently in an unfamiliar technical field. No laptop. An Android tablet. Acode editor on mobile. Zero budget. One clear problem. This same method built this portfolio website and the HMG Concepts website. The skill is not the syntax — it is clarity of thought combined with AI leverage. That combination is what AI-Augmented Solutions Developer actually means in practice.
Today CBT Pro is live. Real students have sat real exams on it. I have deployed 12 ML and EdTech projects across 7 industries. I am currently enrolled in three active learning programmes simultaneously. And I am still in a secondary school classroom every week — because the problems I solve with data are the same ones I have been watching up close for 15 years.
"I did not wait to become a developer. I used clear thinking and AI leverage to build the tools my students needed. That working method is the real skill — not any specific technology."
No progress bars. Just the real tools I pick up with purpose, master deliberately, and use to ship things that work. My maths teacher brain is the best feature engineer I own.
The core of my career transition. Used across all 12 deployed projects — classification, regression, NLP, explainability, and model serialisation.
15 years of teaching Maths means I understand the numbers, not just the tools. I use BI to tell stories, not fill dashboards.
Not a web developer — a data scientist who leveraged AI to build a live exam platform on a tablet. The skill is clear thinking, not syntax memorisation.
From notebook to live deployed app. AI tools are part of my daily workflow — not an occasional shortcut but a genuine working method.
Studying in parallel while still teaching every week in a secondary school classroom. This is what deliberate, directed learning looks like from someone who has been teaching it for 15 years.
Every project started with a real problem. Every one is live, documented honestly, and built to be understood — not just to impress. The classroom problems most of all.
"Built by a tutor, for tutors. No laptop. No web dev background. No budget. No compromise."
Most portfolios show only the destination. This one shows the road — with the detours, the pivots, the moments of doubt, and the deliberate choices that led here.
The classroom, extended beyond the school walls. Watch complete data science projects built from scratch, machine learning concepts explained the way a real teacher explains them, and WAEC/JAMB prep — all free, all clear, all honest.
Every programme here was completed — not just enrolled in. Each represents a deliberate choice to build a specific capability, not to collect badges for a CV that does not match reality.
Over 15 years across Nigerian classrooms, and a growing circle of data and tech colleagues. Here are some voices from people who have seen the work up close.
"Mr Adewale does not just teach you how to solve the problem — he teaches you how to think. My Further Mathematics result went from D7 to B2 in one term. That does not happen by accident. He actually cares whether you understand."
"I have seen many free exam tools for Nigerian schools. Most are broken or stop working when it matters. CBT Pro is genuinely different. My students completed their mock exams without a single technical issue. That alone is remarkable."
"What stands out in Adewale's portfolio is not the project count — it is the honesty. He documents the data leakage fix, the models that didn't work, the real metrics. That is exactly what a serious, trustworthy data scientist looks like."
Have you been a student in my classroom, used CBT Pro in your school, watched a tutorial on HMG Concepts YouTube, or collaborated with me on a project? Your experience — even one honest sentence — helps other teachers, parents, recruiters, and schools understand what this work means in the real world.
Share Your Experience on WhatsAppWhether you are a recruiter, school administrator, company with a data problem, parent seeking a serious STEM tutor, or a collaborator with a shared vision — I want to hear from you.