Stanford University
Standford University: The Complex Plane
This resource contains both general and detailed information about the complex plane.
Other
The Complex Plane
Contains detailed information about the complex plane, including graphs to demonstrate examples.
Math Is Fun
Math Is Fun: Polar and Cartesian Coordinates
Students learn about polar and cartesian coordinates. The tutorial consists of notes and examples.
Sophia Learning
Sophia: Practice W/ Inclined Planes: Lesson 2
This lesson provides the learner with example problems on determining the net force acting on objects at rest or sliding across inclined planes. It is 2 of 2 in the series titled "Practice w/ Inclined Planes."
Sophia Learning
Sophia: Inclined Planes: Lesson 2
This lesson introduces the concept of the inclined plane. It is 2 of 2 in the series titled "Inclined Planes."
Other
Vector Equation of a Plane
This site explains how to find the vector equation of a plane given either the normal vector and a point in the plane or three distinct points in the plane.
University of Cambridge
University of Cambridge: Nrich: A Cartesian Puzzle
This one page website lets you practice plotting points on the coordinate grid. See if you can find the missing coordinates to complete the shapes. When you are finished the solutions are only a click away.
Stanford University
The Complex Plane (Standford University)
Contains both general and detailed information about the complex plane.
Sophia Learning
Sophia: Representing Forces on an Inclined Plane: Lesson 2
This lesson demonstrates how to draw free-body diagrams for objects at rest or sliding on an inclined plane. It is 2 of 2 in the series titled "Representing Forces on an Inclined Plane."
Sophia Learning
Sophia: Inclined Planes & Net Force: Lesson 2
This lesson demonstrates how to find the net force acting on objects, at rest or, sliding across inclined planes. It is 2 of 2 in the series titled "Inclined Planes & Net Force."
Sophia Learning
Sophia: Objects Sliding on an Inclined Plane: Lesson 2
This lesson explains what forces are action on objects which are sliding across an inclined plane. It is 2 of 2 in the series titled "Objects Sliding on an Inclined Plane."
Sophia Learning
Sophia: Coordinate Axes & Reference Frames: Lesson 3
This lesson introduces the learner to coordinate axes and explains how they can be used with reference frames. It is 3 of 3 in the series titled "Coordinate Axes & Reference Frames."
Sophia Learning
Sophia: Rotating on a Coordinate Plane: Lesson 2
This lesson demonstrates how an object can be rotated in space and on a coordinate plane about different points. It is 2 of 5 in the series titled "Rotating On a Coordinate Plane."
Other
Robert Munafo: Polar Coordinate System
This site is a personal site that contains brief but good information on the polar coordinate system. Contains links to additional information, along with several formulas and charts.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Coordinate Grid Paper Set [Pdf]
This pdf contains several types of blank coordinate grids.
Curated OER
Guardian: Polish President and Leading Advisers Victims of Smolensk Plane Crash
The plane crash that killed Poland's President Lech Kaczynski, his wife, and many government and military officials.
University of Cambridge
University of Cambridge: Nrich: Transformation Tease
Follow the directions at this one page website. You will get lots of practice plotting points on the coordinate grid and experience with transformational geometry.
Curated OER
Bbc News: Polish President Lech Kaczynski Dies in Plane Crash
View video footage from the scene of the plane accident that claimed the life of Polish President Lech Kaczynski, the first lady and key figures in the Polish Government. Was it pilot error, or that the Soviet-designed plane was more...
Curated OER
A View on Cities: Philadelphia: Crashed Plane Sculpture
Crashed Plane sculpture (Philadelphia)