This infographic by MooMooMath is a great little resource to print out for personal review or to share with students. Straightforward and easy-to-navigate, it provides an overview of the methods for proving triangle congruence.
Math Open Reference provides an amazing cache of content related to triangle congruence. Each topic is well explained and includes an interactive model that allows the user to simulate congruence. This resource can be used by teachers to explore and/or review congruence, as well as for instructional purposes.
I absolutely love this collection of resources by Shmoop University! It's a great resource for previewing, reviewing and teaching triangle congruence via whole group, small group, or individual instruction. I like that the concept of triangle congruence is organized into topics with each topic having an entertaining story, videos and additional resources.
Sophia.org has compiled an outstanding list of free video tutorials explaining the concept of congruence in triangles. This resource is excellent for students to use for individual review, scaffolding and expansion, as well as for small group or whole group instruction. A brief, interactive practice quiz is also included.
Geometry Common Core has created an excellent overview of a unit plan for triangle congruence. From the inclusion of the relevant standards, to the overview video, to the sidebar listing foundational ideas, this webpage is an amazing resource for planning how to teach this concept.
Eureka Math has provided a great resource in this pdf. Aligned with Common Core Standards, this easy-to-navigate document provides a unit plan for teaching geometric congruence. The section on triangle congruence includes daily lesson plans, examples, practice problems, and exit slips. Each lesson plan is detailed and comprehensive.
This YayMath video is awesome! It not only thoroughly discusses triangle congruence, but it's also highly engaging and also easy to follow. This video is a great refresher or introduction to triangle congruence for teachers and students.
This resource is a great introduction to triangle congruence. The Math Is Fun website presents an easy-to-understand explanation of triangle congruence with a plethora of useful links. The straightforward language, graphics, and links to additional resources along with links to practice questions make this resource definitely worth bookmarking.