Cuemath
Cuemath: Lines
Learn all about lines. This lesson targets what is a line and the different types. Check-out the interactive simulations to know more about the lesson and try your hand at solving a few interesting practice questions at the end of the page.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Parallel and Perpendicular Lines
Get independent practice working with parallel and perpendicular lines. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
University of Regina (Canada)
University of Regina: Math Central: Characteristics of a Line
Characteristics of a line are explained to students through four different lessons. Topics include intercepts, slope, and special line cases. The lessons have an overview, materials, procedures, and evaluation techniques.
University of Regina (Canada)
University of Regina: Math Central: Characteristics of a Line
Characteristics of a line are explained to students through four different lessons. Topics include intercepts, slope, and special line cases. The lessons have an overview, materials, procedures, and evaluation techniques.
Washington State University
Washington State University: Slope Intercept, Point Slope Forms
Washington State University provides a lesson on finding the slope of an equation and putting the equation into the desired form. The site also contains informatinon concerning parallel and perpendicular lines.
Texas Instruments
Texas Instruments: Linear Functions: Slope Intercept Form
Students learn to develop the equation of a line from its graph. They also learn to write the equation of a line from the slope and the y-intercept, a point and the slope, and two points. They also investigate slopes of lines that are...
Texas Instruments
Texas Instruments: Perpendicular or Parallel?
Students can use TI 73 calculators to explore equations that create parallel and perpendicular lines. Teacher will use the screen capture feature of the Navigator system to display students graphs and equations to discuss observations to...
Texas Instruments
Texas Instruments: Parallel or Perpendicular What's Your Inclination?
This activity has students discover the relationship between parallel and perpendicular lines and their slopes. After constructing these objects using CABRI Geometry II for the TI-89, slopes are measured. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Getting Started With Ti Navigator: Parallel and Perpendicular
This lesson introduces students to Activity Center and is intended to help students interpret whether lines are parallel or perpendicular. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Cabri Geometry Tour
In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.
Texas Instruments
Texas Instruments: Geometry: Parallel and Perpendicular Slopes
This activity will help students understand the relationship between the slopes of parallel and perpendicular lines.
Texas Instruments
Texas Instruments: Parallel and Perpendicular Slopes
This activity is for use as a formative assessment tool after the introduction and overview of parallel and perpendicular slopes.
Texas Instruments
Texas Instruments: Investigating Parallel and Perpendicular Lines Using Cabri Jr
Students use Cabri Jr. App to investigate the slopes and equations of parallel and perpendicular lines.
Texas Instruments
Texas Instruments: Is a Square a Special Case of Rectangle?
The definition of square can determine whether it is a special case of a rectangle. Using the Cabri Jr. application, students can get a feel for why its definition makes sense. Along the way, they get experience with perpendiculars,...
Texas Instruments
Texas Instruments: Parallel Horses
Using the activity center and the Navigator software, the students will review ordered pairs, and the equations for horizontal, parallel, and perpendicular lines.
Texas Instruments
Texas Instruments: Parallel and Perpendicular Lines on Ti Smartview
This is an introductory lesson on graphing parallel and perpendicular lines. The students will have a good visual on how these lines relate to each other. This also illustrates how to determine equations in slope-intercept form of a line...
Northeast Parallel Architectures Center, Syracuse University
Npac Reu Program: Parallel and Perpendicular Lines
Northeast Parallel Architecture Center, Syracuse University provides a brief definition of the slopes of parallel and perpendicular lines
Mr. Martini's Classroom
Mr. Martini's Classroom: Basic Geometry: Points, Lines, and Angles
Students can review basic geometric terms using these self-check, multiple choice questions. Three levels of questions are provided.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Elementos Basicos De Geometria Del Espacio
Interactive resources and activities dealing with perpendicular planes, perpendicular lines and the angle between planes.
Texas Instruments
Texas Instruments: Perpendicular Slope
Students will "discover" that perpendicular lines have negative reciprocal slopes. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Investigating the Slopes of Parallel and Perpendicular Lines
In this activity, students investigate how equations of parallel and perpendicular lines relate to each other. They use the drawing and measurement tools of Cabri Jr. to explore the slopes of lines. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Explore Parallel and Perpendicular Lines
Students can use a graphing calculator to explore graphs of parallel and perpendicular lines. Students will find that parallel lines have the same slope and different y-intercepts and that the slopes of two perpendicular lines are...
Texas Instruments
Texas Instruments: Exploring the Orthocenter of a Triangle
In this activity, students use the Cabri Jr. tools to draw altitudes in a triangle. They construct a line perpendicular to a given line and through a given point. [Requires Adobe Reader.]
McGraw Hill
Glencoe : Online Study Tools: Quiz on Parallel & Perpendicular Lines
Learners exhibit comprehension of advanced mathematics skills in Geometry. The questions check understanding on parallel and perpendicular lines.