Deep instruction in math, reading, writing, science, timing, and test strategy.
Learn moreGrades 6–12 · Chicago
Building Strong Foundations.
Unlocking Bright Futures.
Themelios helps students build skills, confidence, and success — from test prep to STEM to college consulting.
About us
A foundation for lifelong success
Our name comes from the Greek word for foundation — and that’s exactly what we provide. We help students strengthen their academic skills, develop resilience, and build confidence for the future.
Our expert-led programs go beyond test prep. From ACT/SAT and academic tutoring to STEM enrichment and college consulting, students gain the knowledge, mindset, and strategies they need to excel in school and beyond.
Explore current programsHow we help
Real skills. Thoughtful guidance.
Personalized planning, school lists, essays, interviews, and application review.
Plan aheadHands-on coding, engineering, and problem solving for curious middle schoolers.
Explore STEMTest preparation
Master the fundamentals. Excel on the test.
We teach the concepts behind the test — not just tricks. Students learn to solve problems with confidence, think critically under pressure, and use practical strategies for every question type.
- One-on-one or small-group instruction
- Content mastery and targeted practice
- Clear progress and encouraging feedback
Student experience
Confidence changes everything.
“Tiffany’s teaching style is effective and engaging, making it easy for me to understand complex topics. Her dedication has made a significant difference in my life.”— Margaret