Wolfram Research
Wolfram Math World: Cartesian Coordinates
This MathWorld page discusses Cartesian coordinates and the Cartesian coordinate system. Includes somewhat advanced and complicated information!
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Rectas Y Planos
In Spanish. You can study interactively in this unit lines and planes in space, their equations and their relative positions.
Illustrative Mathematics
Illustrative Mathematics: A Ced.2 and G Gmd.4: Global Positioning System I
This question examines the algebraic equations for three different spheres. The intersections of each pair of spheres are then studied, both using the equations and thinking about the geometry of the spheres. Aligns with A-CED.A.2 and...
CK-12 Foundation
Ck 12: Analysis: Three Dimensional Positions
[Free Registration/Login may be required to access all resource tools.] Identifying positions in 3-dimensional space
CK-12 Foundation
Ck 12: Interactive Geometry: 1.1 the Three Dimensions
In order to better understand why your world is three dimensional, consider zero, one and two dimensions.
Sophia Learning
Sophia: Drawing Three Dimensional Objects: Lesson 2
This lesson demonstrates how three-dimensional objects can be drawn in a three-dimensional space. It is 2 of 5 in the series titled "Drawing Three Dimensional Objects."
Sophia Learning
Sophia: Drawing Three Dimensional Objects: Lesson 5
This lesson demonstrates how three-dimensional objects can be drawn in a three-dimensional space. It is 5 of 5 in the series titled "Drawing Three Dimensional Objects."