[Free Registration/Login may be required to access all resource tools.] This concept introduces students to the SAS Triangle Postulate and how to prove that two triangles are congruent given only information about two pairs of sides and...

[Free Registration/Login may be required to access all resource tools.] This concept teaches students to decide whether or not two triangles are similar using SAS Similarity.

This lesson will provide examples that demonstrate how two triangles would be similar by SAS triangle similarity. It is 3 of 5 in the series titled "SAS Triangle Similarity."

In this instructional activity, 8th graders analyze and compare the propaganda techniques used in informational texts, with a particular focus on the use of testimonials. Includes links to recommended resources, scaffolding suggestions,...

[Free Registration/Login may be required to access all resource tools.] Use the SAS Similarity Theorem to determine if triangles are similar.

[Free Registration/Login may be required to access all resource tools.] Prove two triangles are congruent with the Side-Angle-Side shortcut.

Explore and understand triangle similarity.

See how two triangles are congruent it means that all corresponding angle pairs and all corresponding sides are congruent.

This activity will help students visualize the construction of congruent triangles and conceptualize properties through measurement and movement of their construction. Students will need access to the TI-84 Plus Family.

In this task, students must explain the given reasoning for why triangle ABC is congruent to triangle DEF using the language of reflections. Aligns with G-CO.B.8.

A collection of pictures, videos, medical imaging, and illustrations of human anatomy. A membership is required to view some of the images, while other images can be viewed without one.

For this lesson, students will explore ways authors use text structures to convey meaning through cause and effect, sequencing, comparison, and more.

This activity works with a PowerPoint presentation to have students answer questions as to what method a pair of triangles can be proven congruent: SSS, SAS, ASA, AAS, HL.

In this lesson plan, students compare various types of relationships among organisms (i.e., biotic interactions). Students will: explain the roles of producers and consumers, and predators and prey in an ecosystem. Explain the levels of...

This site gives a very thorough explanation of how to tell if two triangles are congruent. Dr. Math explains why SSS, SAS, ASA determine that two triangles are congruent. The Dr. gives a few exercises for the reader to try then gives the...

[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.

Discover the world of "similarity" in this test prep tutorial on similar triangles. Detailed explanation of concept with examples, challenging interactive practice, and a classroom activity that integrates math and science.

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.

As a resource for teachers, an activity of how to connect Venn Diagrams with the five methods of proving triangles congruent - SSS, SAS, ASA, AAS, HL - is explained.

Here are four problems to solve using the Law of Cosines. Two are SSS problems; two are SAS problems. Two have detailed solutions; two have answers given only. Notice the link at the bottom that takes you to a Law of Cosines calculator -...

In this task, a student has learned the SSS and SAS congruence tests for triangles and wonders if these tests might work for parallelograms. Aligns with G-CO.C.11 and G-SRT.B.5

Use the triangle congruence criteria SSS, SAS, ASA, and AAS to determine that two triangles are congruent.

In this lesson on congruent triangles, students explore how to use postulates to identify if triangles are congruent by SSS, SAS, ASA, and AAS.

Find guidelines to help you "solve" triangles, which means finding the value of missing sides and angles. Provided are examples of six scenarios in which you can solve a triangle's missing measurements, as well as relevant equations,...