Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Inscribed Angles and Tangents
Move a point around the circle to see that the inscribed angle stays the same, then discover why a tangent is perpendicular to the radius.
by Anonymous
Derivatives and Tangent Slopes
Slide two points together to watch the secant's slope approach the tangent's slope—the derivative at that point.
by Anonymous