Math Made Visible
8 interactive videos. Watch each one, then try the idea live. Free, no account.
Minus × Minus = Plus?
You memorized the rule. Nobody showed you why it works. Two flips on a number line — that's the whole secret.
Slope: The Steepness Number
A ramp, a staircase, and a graph walk into a math class — and one number describes all three. Meet m.
Solve for x: The Balance Trick
An equation is a balanced scale. Tip it and the = breaks. Solving is just un-doing — watch x get peeled free.
The Pythagorean Theorem, Seen
a² + b² = c² is not about letters — it's about actual squares. Count the cells, watch them rearrange, and the rule becomes obvious.
Percent, Decoded
45% = 0.45 = 45/100 — one number, three costumes. And why −20% then +20% never gets you back where you started.
Why x² Makes That Curve
Every basketball shot flies the same curve. Squaring is fast and mirrored — and the parabola is inevitable. Roots are where it lands.
SOH CAH TOA: Triangle GPS
Same angle, same ratio — locked, no matter the size. That lock is sin, cos, tan. Measure a rooftop with one angle and a tape measure.
What Is a Function?
A function is a machine: feed it a number, exactly ONE answer drops out. Graphs are just its complete answer book.