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Lesson Plan
Texas Instruments

Texas Instruments: Sss Triangle Congruence

For Teachers 9th - 10th Standards
Students will use their TI-84 Plus and Cabri Jr to investigate SSS triangle congruence.
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Activity
Analyze Math

Analyze Math: Congruent Triangle Problems

For Students 9th - 10th Standards
The geometry tutorial investigates congruent triangles. The activity has several examples with detailed solutions.
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Study Guide
SEDL

The Timss Mathematics Segment: Geometry

For Students 4th - 8th Standards
This site explores the area of congruent triangles and how it is a difficult area to understand.
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Website
Curated OER

Nova Scotia Dept. Of Education: Mathematics 8: Geometry Diagrams

For Teachers 8th Standards
A collection of diagrams that complement Mathematics 8, a Grade 8 Math text, have been posted here. The diagrams were created using The Geometer's Sketchpad,
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eBook
Math Planet

Math Planet: Geometry: Congruent Triangles

For Students 9th - 10th Standards
Features a definition and a video lesson on congruent triangles with examples. [1:11]
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Unit Plan
Sophia Learning

Sophia: Using Corresponding Parts of Congruent Triangles

For Students 9th - 10th Standards
This lesson will demonstrate the use of CPCTC in triangle congruency proofs.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Similarity

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Recognize similarity in figures
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Interactive
Mangahigh

Mangahigh: Shape: Recognize Congruent Shapes

For Students 9th - 10th Standards
Determine whether shapes are congruent or similar.
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Interactive
Mangahigh

Mangahigh: Shape: Congruent Triangles

For Students 9th - 10th Standards
Explain how two triangles are congruent.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Hl Triangle Congruence

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students prove two right triangles are congruent with the Hypotenuse-Leg shortcut. Students examine guided notes, review guided practice, watch...
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Unknown Type
Khan Academy

Khan Academy: Determine Congruent Triangles

For Students 9th - 10th Standards
Use the triangle congruence criteria SSS, SAS, ASA, and AAS to determine that two triangles are congruent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Congruent Triangles and Triangle Relationships

For Students 9th - 10th Standards
Twenty-four problems cover the topics of congruent triangles and triangle relationships in various settings. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator: Congruent Triangles and Triangle Relationships

For Students 9th - 10th Standards
Practice using your graphing calculator for demonstrating congruent triangles. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Congruence Statements

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to write congruence statements and use congruence statements to determine the corresponding parts of triangles. Students examine...
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Congruence

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Identifying and applying theorems to determine triangle congruence.
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Unit Plan
CK-12 Foundation

Ck 12: Congruent Triangles

For Students 5th - 9th Standards
[Free Registration/Login Required] Students explore the concept of congruent triangles by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about...
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Unit Plan
CK-12 Foundation

Ck 12: Congruence Statements

For Students 9th - 10th Standards
[Free Registration/Login Required] Students explore the concept of congruence statements by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about...
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Interactive
CK-12 Foundation

Ck 12: Sss Triangle Congruence

For Students 5th - 7th Standards
[Free Registration/Login Required] Students will use the interactive lines to determine if the triangles are congruent. Students can click learn more to watch a video and can click challenge me to answer quiz like questions.
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Interactive
CK-12 Foundation

Ck 12: Sas Triangle Congruence

For Students 7th - 8th Standards
[Free Registration/Login Required] Students are asked to create a triangle that is congruent to the given triangle. Click on learn more to watch a video and challenge me to answer a practice question.
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Interactive
CK-12 Foundation

Ck 12: Asa and Aas Triangle Congruence

For Students 6th - 8th Standards
[Free Registration/Login Required] Students are given triangles and angles and are to determine which triangles are congruent. Click learn more to watch a video and challenge me to try a practice question.
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Unit Plan
CK-12 Foundation

Ck 12: Triangle Identification as Similar, Congruent, or Neither

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Determine whether triangles are similar, congruent, or neither.
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Lesson Plan
Texas Instruments

Texas Instruments: Investigate Triangles and Congruence

For Teachers 9th - 10th Standards
Learners can use the TI-84 Plus family with Cabri Jr. to prove triangle congruence with SSA.
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Unit Plan
Oswego City School District

Regents Exam Prep Center: Working With Sets and Venn Diagrams

For Students 2nd - 8th Standards
A collection of activities that help students understand number relationships by using Venn diagrams to solve math problems. Practice problem solving skills in the interactive practice. Then, follow up with a classroom activity using the...
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Lesson Plan
Oswego City School District

Regents Exam Prep Center: Congruence of Triangles

For Teachers 6th - 8th Standards
Congruent means, "same size, same shape." Find out more about this concept at this test prep site with real world examples and pictures. Hands-on classroom activity and lots of practice. Knowledge of basic algebra and geometry concepts...