Video narration
Here’s a simple working model for the Pythagorean theorem. Draw a right triangle: the two short sides are a and b, and the longest side is c, the hypotenuse. Now build three squares—one on each side. In our hand-drawn “stick file” idea, imagine each side as a labeled stick from the file: stick a, stick b, and stick c, used as the theory reference. Slide the a-sticks and b-sticks to fill their squares, like counting equal unit strips. Watch what happens: the total area covered by the square on a plus the square on b matches the area of the square on c. That’s the whole rule: a squared plus b squared equals c squared. So when you know any two sides of a right triangle, this model shows how to find the third—by matching areas, not just memorizing a formula.