Free Courses
Free Courses
Open, structured, and free forever — for students, career changers, and curious minds of all ages.
All courses are 100% free. No accounts required to browse. No paywalls. Ever.College Algebra
Build the algebra foundation needed for college math, statistics, and data science. Real explanations, real practice, real results.
Start CourseIntroduction to Statistics
Learn how data becomes knowledge. Distributions, hypothesis testing, regression, and more — taught the way it actually makes sense.
Start CourseTrigonometry
Master angles, the unit circle, trig functions and their graphs, identities, equations, law of sines and cosines, polar coordinates, and complex numbers.
Start CourseCalculus I
A complete first course in single-variable calculus: limits, derivatives, differentiation rules, optimization, integration, and the Fundamental Theorem of Calculus.
Start CourseLinear Algebra
Systems of equations, matrices, determinants, vector spaces, linear transformations, eigenvalues, inner product spaces, and real-world applications in data science.
Start CourseDifferential Equations
First-order and second-order ODEs, Laplace transforms, systems of equations, series solutions, and applications to springs, circuits, and population models.
Start CourseFinancial Literacy for Statisticians
A comprehensive course that translates Wall Street into the language of statistics, probability, and data science. Every concept mapped to statistical frameworks. Includes runnable Python scripts with real market data.
Start CourseResearch Methods
Design studies, evaluate sources, collect and analyze data, and write research reports — skills for every major. From forming a research question to completing a mini proposal.
Start CourseExcel & Google Sheets for Data
Work with real data using the world's most widely-used tools. Formulas, pivot tables, charts, data cleaning, and a full capstone project. Free with Google Sheets — no downloads needed.
Go to CourseGoogle Sheets Template Library
Ready-to-use spreadsheet templates for students: grade tracker, budget, research organizer, study planner, and more. Each template includes a visual preview, exact formulas, and step-by-step setup instructions.
Browse TemplatesIntroduction to Python
Your first steps in programming. Variables, loops, functions, and data structures — hands-on from day one. No prior coding experience needed.
Start CoursePython Practice Labs
Hands-on Python labs with a live code editor built right into the page. Write code, click Run, see results instantly — powered by Pyodide. For students who've completed Introduction to Python.
Start LabsData Analyst: Designed with Neurodivergence in Mind
A complete career-track course — SQL, Python, Tableau, Power BI, and a deep dive into SAP FI/CO. 100% free tools. Built for brains that learn differently.
Start CourseR Practice Labs
Hands-on R labs with live code execution and ggplot2 chart rendering. Vectors, data frames, dplyr, ggplot2, statistics, and a full capstone analysis. For students with basic R familiarity.
Start LabsSQL Practice Labs
Write real SQL queries against a live in-browser database. SELECT, WHERE, JOINs, subqueries, aggregate functions, and a full capstone analysis. No SQL experience required for Lab 1.
Start LabsMachine Learning Basics
Understand supervised learning, train classifiers and regression models, and evaluate results — all in your browser with Pyodide. KNN, Decision Trees, Linear Regression, and a full capstone project.
Start CourseSpeaking the Language of AI
Understand what AI really is, how it works, and how to use Claude confidently. Short lessons, clear structure, no pressure. Designed for neurodivergent learners — works better for everyone.
Start CourseAcademic Writing with AI
Use Claude as a 24/7 writing tutor — brainstorm, outline, get feedback, and revise — while keeping your own voice and staying academically honest.
Start Course🚀 Learning Path
A step-by-step visual roadmap showing how every course connects — from Young Learners through career-ready. Includes a 3-question quiz to find your best starting point.
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Completed a course? Generate a beautiful, printable certificate of completion. Enter your name, pick your course, and save as PDF — no account needed.
Get Your Certificate📚 Statistics Glossary
Key terms from probability, inference, and regression — in English, Arabic, and Spanish. Includes definitions, formulas, and a live search filter.
Open Glossary💻 Python Glossary
Programming vocabulary from variables to functions — in English, Arabic, and Spanish. Every key term includes a real code example you can try.
Open Glossary📊 Data Science Glossary
ML, data wrangling, and analysis terminology — in English, Arabic, and Spanish. Covers supervised learning, pipelines, pandas, SQL, and more.
Open Glossary