Khan Academy
Khan Academy: Quadrants on the Coordinate Plane
Practice graphing points on a coordinate plane and identifying the quadrant or axis where they are located. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Cool Math
Coolmath: Intro to Graphing Plotting Points
Learn how to plot points on a coordinate graph.
ClassFlow
Class Flow: Introduction to Geometry
[Free Registration/Login Required] This flipchart is a basic introduction to Geometry: points, lines and planes. The flipchart contains movable objects (with an emphasis on student participation) and Activotes.
Illustrative Mathematics
Illustrative Mathematics: G Co Points Equidistant From Two Points in the Plane
In this task, students are shown a line segment that is bisected at a right angle by a second line. They are asked to prove statements about this geometric construction. Includes a GeoGebra worksheet that can be used by the instructor to...
Texas Instruments
Texas Instruments: Intersecting Lines and Planes
In these problems, students are asked to find: point of intersection of two lines; coefficients that make two lines parallel; intersection of diagonals of a quadrilateral; and the point of intersection of three planes.
Illustrative Mathematics
Illustrative Mathematics: G Gpe Scaling a Triangle in the Coordinate Plane
The goal of this task is to apply dilations to a triangle in the coordinate plane. Students will need to find the coordinates of a point which cuts a given segment into one third and into two thirds. The two dilated triangles share a...
Illustrative Mathematics
Illustrative Mathematics: F Le Do Two Points Always Determine a Linear Function?
For this task, students explore linear functions and whether they can always be determined by two points on the coordinate grid. It focuses on producing an explicit function f(x) in the case where the line is not vertical. Aligns with...
Illustrative Mathematics
Illustrative Mathematics: G Gpe, F Tf Coordinates of Points on a Circle
For this task, students are shown a unit circle in a plane and an angle measured from the x-axis. They must determine the coordinates of the line segment for the angle and answer a question about the sum of the coordinates. The purpose...
Fun Brain
Fun Brain: What's the Point? (Graphing Skills Game)
This graphing game challenges players to supply the coordinates for points shown on a series of graphs and also to plot pairs of coordinates on simple Cartesian planes.
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.
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 introduces students to plotting points on a Cartesian grid using a Geoboard. Lesson two moves them...
Cuemath
Cuemath: Coordinate Geometry
A comprehensive guide for learning all about Coordinate geometry with definitions, the coordinate plane, formulas, equation of a line, related topics, solved examples, and practice questions.
PBS
Pbs Learning Media: Finding the Intersection
In this Cyberchase video, Inez and Digit identify the location of the transformatron using their knowledge of parallel and intersecting lines.
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.
CK-12 Foundation
Ck 12: Geometry: Basics of Geometry Study Guide
This study guide on Geometry covers some key vocabulary, drawing and labeling diagrams, describing geometric figures, and basic postulates for points, lines, planes, and intersections. It is available for download with free registration.
Free Math Help
Free Math Help: How to Find the Limit
The resource explores basic terms used in geometry. The tutorial defines a point, line, and plane. Examples are included.
Sophia Learning
Sophia: Two Lines Tangent to a Circle: Lesson 3
This lesson will present how if two segments from the same point outside a circle are tangent to a circle, then they are congruent. It is 3 of 5 in the series titled "Two Lines Tangent to a Circle."
Texas Instruments
Texas Instruments: Handy Reflections
The purpose of this investigation is to: Revise plotting points on the Cartesian plane; Use and understand aspect ratios; Improve estimation skills; Use a spreadsheet or a graphing calculator to draw a graph; Learn how to reflect lines...
PBS
Pbs Learning Media: Two Sightings, Different Information
Jackie and Matt are looking at the same object along two different lines, in this video segment from Cyberchase.
University of Regina (Canada)
University of Regina: Math Central: Basics of Graphing
Students learn the basics of graphing including terminology, plotting, and reading points. The lesson has an overview, materials, procedures, and evaluation techniques.
University of Regina (Canada)
University of Regina: Math Central: Basics of Graphing
Students learn the basics of graphing including terminology, plotting, and reading points. The lesson has an overview, materials, procedures, and evaluation techniques.
Texas Instruments
Texas Instruments: Linear Regression: Wing Span/height
Students take measurements of individual's wing span and height and create a coordinate graph. The activity should include at least three different grade levels. Students submit an equation through "Activity Center" and the class...
Alabama Learning Exchange
Alex: Midpoint of a Line Segment.
Investigate finding the midpoint of a line segment and derive the formula for the midpoint of two points on a coordinate plane. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
Free Math Help
Free Math Help: Geometry Vocabulary
The tutorial examines basic geometry vocabulary. Definitions and examples of a point, line, line segment, ray, and plane are included.