THE BIG IDEA
Vectors and Geometry in Space
How do we describe direction and motion in space?
Vectors attach direction to magnitude. Their products distinguish alignment from perpendicular area, and vector-valued curves let calculus follow a path through three dimensions.
SEE THE CONNECTIONS
How the ideas fit together.
A map of the main ideas. Follow a node to its lesson.
- Start with01Vector products
- directions and normals describe02Lines & planes
- letting position vary gives03Motion
- tracking the turn reveals04Curvature
YOUR LEARNING ROUTE
One idea at a time.
Read the explanation, use the visualization, then try the check before opening its reasoning.
Keep the unit cheat sheet handy →Lessons in this unit4 lessons
- 01Vectors, Dot Products and Cross ProductsChoose a dot or cross product from the scalar or directional quantity being modeled.Marked studied
- 02Lines and Planes in SpaceUse direction and normal vectors to describe incidence, intersection and distance.Marked studied
- 03Space Curves, Velocity and AccelerationDifferentiate a vector trajectory and distinguish speed, velocity and distance traveled.Marked studied
- 04Arc Length, Curvature and TurningSeparate a path’s geometry from the speed at which it is traversed.Marked studied