Fractions Are Division
A fraction is a ratio and a division problem in disguise. 3/4 means 3 divided by 4 — that single idea unifies fractions, decimals, and percentages.
Math Introductions
Learn the Fundamentals
A true master is an eternal student
Getting Started
Three short reads to build your foundation. No prior knowledge needed, just curiosity.
Algebra: Thinking in Unknowns
Algebra replaces numbers with letters so one rule covers infinite cases. An equation is a balance — what you do to one side, you must do to the other.
Geometry & Visual Proof
Geometry is unusual — most of its truths can be seen, not just calculated. The Pythagorean theorem, for instance, can be proved by rearranging shapes alone.