5280 Math
Triangle Area Patterns
Combine algebraic and geometric strategies to find solutions. The task asks learners to find the coordinates of a third vertex of a triangle to create a triangle with a specific area. The project is a set of seven problems that...
Cool Math
Coolmath: Intro to Graphing the Cartesian (Rectangular) Coordinate System
A quick tutorial on the basics of the Cartesian (rectangular) coordinate system.
Johan Claeys
Math Abundance: From a Cartesian Equation to a Polar Equa
Shows how to convert a cartesian equation (rectangular coordinates) to a polar equation.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Rectangular Coordinates
Here is a site that clearly and thoroughly explains the Cartesian coordinate system. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who have...
Interactive Mathematics
Interactive Mathematics: Rectangular Coordinates
Descriptions of x- and y-coordinates are presented, followed by an interactive game that demonstrates how to plot points on the coordinate plane. Examples and exercises are provided for practice.
Help Algebra
Help algebra.com: Rectangular Coordinates
The parts of the coordinate plane are described and plotting ordered pairs is demonstrated with several examples. The four quadrants of the coordinate plane are also defined.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Polar Coordinates
Hotmath provides 20 practice problems relating to polar coordinates and complex numbers. Each of the practice problems include a step-by-step guide for solving.
Texas Instruments
Texas Instruments: Transformations in Geometry
In this activity the teacher will send two lists, a window range, and an educational document via the TI-Navigator. Students will explore the reflections and rotations of a shape in the rectangular coordinate system.
Texas Instruments
Texas Instruments: Drawing on Your Knowledge
In this activity, students will understand the basic geometric concepts of parallelism and perpendicularity, and will also able to use rectangular coordinates to make congruent objects. They will display understanding of parts of...
Ohio State University
Math 153: Graphing Polar Equations
Shows a way to graph polar equations using rectangular coordinates first.
Interactive Mathematics
Interactive Mathematics: Polar Form of Complex Numbers
Using vectors as a starting point, this site demonstrates how complex numbers can be written in polar form. Several examples are included that require you to write complex numbers in polar and rectangular form and also represent them...
Interactive Mathematics
Interactive Mathematics: Functions and Graphs
The system created by Rene Descartes (1596-1650 CE) is explored in depth, covering topics such as definitions, notation, evaluating, domain and range, graphing and more. Interactive examples and demonstrations are enhanced using Live...