© 2025 Perplex Learning Incorporated. All rights reserved.
All content on this website has been developed independently from and is not endorsed by the International Baccalaureate Organization. International Baccalaureate and IB are registered trademarks owned by the International Baccalaureate Organization.
Learn Key Concepts
Explore the fundamental concepts and skills for this unit through our interactive lessons.
Vector arithmetic & geometry
Addition, subtraction and scalar multiplication, algebraically and geometrically.
Scalar and vector products
Vector & scalar product + applications
Equations of a line
Coincident, Parallel, Intersecting & Skew Lines
Equations of a plane
Intersections with planes
Angles in 3D space