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Texas Education Agency
Texas Gateway: Making and Verifying Conjectures About Angles
Given the relationship(s) among a set of angles, the student investigates the patterns and makes conjectures about the geometric relationships, including angles formed by parallel lines cut by a transversal.
Texas Education Agency
Texas Gateway: Making Conjectures About Parallel and Perpendicular Lines
The student will verify theorems about angles formed by parallel lines cut by a transversal and apply these relationships to solve problems.
Texas Instruments
Texas Instruments: Parallel Lines Cut by a Transversal With Cabri Jr.
Using Cabri Jr, the students (with the teachers help) will create parallel lines cut by a transversal, measure angles, and compare the relationships of the angles formed using features of the Cabri Jr.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Parallel Lines (Object Interactive)
Investigate vertically opposite, corresponding, and alternate angles formed by parallel lines and a transversal using this highly interactive Learn Alberta math. Be sure to follow the link to the printable activities, solutions, learning...
Math Open Reference
Math Open Reference: Parallel Lines
Get the definition for parallel lines and explore angles associated with parallel lines.
Math Planet
Math Planet: Geometry: Angles, Parallel Lines and Transversals
Angles, parallel lines, and transversals are explained through examples and a video lesson. [1:01]
Khan Academy
Khan Academy: Angle Relationships With Parallel Lines
Find missing angles given two parallel lines and a transversal. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Equation Practice With Angles
In this practice activity, students calculate angles created when two parallel lines are intersected by a transversal. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
CK-12 Foundation
Ck 12: Elem Math: Visually Evaluating Parallel Lines Cut by a Traversal
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems about parallel lines cut by a transversal.
Texas Instruments
Texas Instruments: Angles Formed by Parallel Lines and a Transversal
Students explore relationships in various angles formed by 2 parallel lines and a transversal.
Texas Instruments
Texas Instruments: Parallel Lines, Transversals and Angles
This activity allows students to: 1. Identify the pairs of angles formed when a transversal intersects two lines.: 2. Measure angles Using Cabri Jr. 3. Identify relationships between pairs of angles when a transversal intersects parallel...
Texas Instruments
Texas Instruments: Angles and Transversals
Students explore the relationships of angles formed when two parallel or non-parallel lines are cut by a transversal. This activity investigates the terms: Transversal, corresponding angles, alternate interior angles, alternate exterior...
Texas Instruments
Texas Instruments: Parallel Lines Cut by a Transversal
In this activity, students learn and increase their knowledge about the angles formed when parallel lines are cut by a transversal.
Texas Instruments
Texas Instruments: Angles Formed by Parallel Lines
Students can use Cabri Jr. to construct parallel lines and transversals. They will make conjectures about the angles that are formed.
Texas Instruments
Texas Instruments: Properties of Parallel Lines Cut by a Transversal
In this activity, students create parallel lines and a transversal, and study the properties of the lines and their angles.
Analyze Math
Analyze Math: Parallel Lines and Angles Problems
Try these three problems about finding the measures of different angles that arise from diagrams involving parallel lines and transversals. Detailed solutions are written out for these three problems of moderate difficulty.
CK-12 Foundation
Ck 12: Geometry: Corresponding Angles
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about corresponding angles, and how to use them to determine whether or not lines are parallel. Students examine guided notes, review...
CK-12 Foundation
Ck 12: Geometry: Corresponding Angles
[Free Registration/Login may be required to access all resource tools.] In this lesson students identify corresponding angles formed when a line intersects two other lines. Students examine guided notes, review guided practice, watch...
CK-12 Foundation
Ck 12: Geometry: Corresponding Angles
[Free Registration/Login may be required to access all resource tools.] In this lesson students identify corresponding angles formed when a line intersects two other lines. Students examine guided notes, review guided practice, watch...
Sonoma State University
Sonoma State University: Parallel Lines and Similar and Congruent Triangles
This site defines parallel lines, parallel lines cut by a transverse, and congruent triangles. It also contains links for related terms.
ClassFlow
Class Flow: Parallel Lines and Planes
[Free Registration/Login Required] This flipchart defines parallel lines and planes. It defines a transversal, the concept of alternate angles, and vertical angles.
ClassFlow
Class Flow: Parallel Lines and Angles
[Free Registration/Login Required] This flipchart regards parallel lines and relationship of angles created by a transversal. Includes lesson on vocabulary, Jeopardy-style game, and quiz.
Texas Instruments
Texas Instruments: Parallel Lines
This file contains questions related to parallel lines cut by a transversal and the angles formed. The questions can be used to asses your students' understanding of this topic in geometry.
ClassFlow
Class Flow: Parallel Lines
[Free Registration/Login Required] This flipchart gives information and examples of the relationships of angles when parallel lines are cut by a transversal.