- Videos
- Garfield's proof for pythagorean theorem
- the golden ratio and aphrodite's phi
- geometric constructions - 2
- solving quadratic inequalities
- solving quadratic equations
- constructing an ellipse
- constructing a hyperbola
- constructing a parabola
- vectors - a no word introduction
- reflective properties of conic sections
- right triangle trigonometry
- areas...
- the exponential and the logarithmic functions
- a math trick...
- right triangle trigonometry-2
- a function...
- approximating pi...
- regular polygons
- triangles...
- angles in a circle...
- convex quadrilaterals
- algebra or geometry?
- a math trick-2...
- congruent triangles
