Shodor Education Foundation
Shodor Interactivate: Lesson: Graphing and the Coordinate Plane
This lesson plan helps students understand how to graph ordered pairs on the coordinate plane. Lots of resources are available to teachers and students at this website.
Wolfram Research
Wolfram Math World: Polar Coordinates
This math link contains a plethora of information on Polar coordinates. The site begins with a diagram illustrating the measurements used when working with polar coordinates then goes into detail on specifics of using this coordinate...
Oswego City School District
Regents Exam Prep Center: Slopes and Equations of Lines
Three resources for teaching slopes and equations of lines: a lesson with a formula for finding slope, different equations for lines, and several examples; a fourteen-question quiz covering slope, perpendicular and parallel lines, and...
Illustrative Mathematics
Illustrative Mathematics: G Gpe Parallel Lines in the Coordinate Plane
The goal of this task is to prove the slope criterion for parallel lines. Aligns with HSG-GPE.B.5.
Khan Academy
Khan: Lesson 5: Relationships Among Linear Equations, Lines in Coordinate Plane
This lesson focuses on the relationship between algebraic, graphical, and contextual expressions of linear equations.
University of Regina (Canada)
University of Regina: Math Central: Introduction to Slope for Middle Years Mathematics
This collection of five middle school math lessons covers the topic of plane geometry, specifically the concept of slope. The first lesson plan introduces students to plotting points on a Cartesian grid using a Geoboard. Lesson two moves...
Khan Academy
Khan Academy: Algebra I: Slope From Graph
Find the slope of a line on the coordinate plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Wolfram Research
Wolfram Math World: Line
This MathWorld site gives Euclid's definition of a line, properties of lines, common terminology, and algebraic representations of lines and their distinctive parts in a cartesian system. The site then goes into detail of different line...
Math.com
Math.com: Algebra: Graphing Linear Equations
The lesson investigates how to graph linear equations. The tutorial includes definitions, examples, and a worksheet.
Khan Academy
Khan Academy: Advanced Reflections
Find the reflection that maps a given figure to another and draw the image of a reflection. The lines of reflection in this exercise have a wide range of slopes. Students receive immediate feedback and have the opportunity to try...
Vision Learning
Visionlearning: Linear Equations in Science: Relationships With Two Variables
An introduction to the history of linear equations and how they relate to science.
Math.com
Math.com: Graphing Equations Unit Quiz
The unit quiz consists of eight true or false questions that examine graphing linear equations. Solutions are provided.
PBS
Pbs: Xy Flyer
Explore the behavior of lines by composing equations to launch a toy airplane through a series of hoops. This interactive exercise focuses on working in the coordinate plane and deepening the understanding of how slope and y-intercept...