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This lesson is designed as a model for teachers to demonstrate how distance learning can incorporate both synchronous and asynchronous activities, interactive media, and collaborative learning.

Teachers may adapt the activities for their own classrooms by editing the Padlet prompts, adjusting the difficulty of the triangle problems, or substituting different digital tools.

(Sometimes you'll see a Teacher Note in italics. Be sure to delete this before posting this padlet for students)

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Students will be able to apply triangle congruence postulates (SSS, SAS, ASA, AAS, HL) to determine if two triangles are congruent.

Students will collaborate and communicate with peers to justify congruence through proofs and real-life examples.

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Complete the following activities:

1. Complete the Edpuzzle listed above

(Teacher Note: Replace the link above with one to an assigned version for your class by clicking the "assign" button at the top. Be sure to delete this text afterwards.)

2. Find or create two triangles (in images, drawings, or real-life photos). Post them as a reply to this with a short explanation of which congruence postulate could prove them congruent. Comment on another student's post that doesn't yet have a comment on if you agree/disagree with them and why.

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Edpuzzle video lesson. Make any video your lesson. Take a video and crop it, add your voice or embed questions at any point.

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Host a live session using Zoom, Google Meet, or Microsoft Teams.

1. Begin by reviewing one or two edpuzzle questions from the previous activity as a class.

2. Place students into breakout groups (3–4 per group).

3. Share a collaborative whiteboard (Whiteboard.chat) with each group.

4. Each group is given a set of triangle diagrams. Their task is to:

Mark corresponding sides/angles.

Identify the correct congruence postulate (SSS, SAS, ASA, AAS, or HL).

Write a short proof or justification directly on the whiteboard.

5. Return to the main room where groups present their whiteboard solutions in 1–2 minutes.

Teacher Note: Whiteboard links should be set up before class and shared in the chat. Monitor breakout rooms to provide guidance as groups work.

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Students will be assessed using both formative and summative methods.

Formative Assessment

Review Padlet posts and comments for accuracy and clarity.

Check if students correctly identify and justify triangle congruence postulates.

Provide quick feedback on misconceptions during the synchronous whiteboard activity.

Summative Assessment

Assign short Quizizz (Linked Above)

Results provide data for both teacher and student to confirm mastery of objectives.

Teacher Note: Share the quiz link at the end of the synchronous session or post it to your districts LMS as a required follow-up assignment.

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Sss Sas Asa Aas Hl Triangle Congruence 10th Grade Quiz | Wayground (formerly Quizizz)

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Sss Sas Asa Aas Hl Triangle Congruence quiz for 10th grade students. Find other quizzes for Mathematics and more on Wayground for free!

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To ensure the module runs smoothly, establish clear expectations for both asynchronous and synchronous activities.

Padlet Guidelines

Require students to post with their name attached.

Approve posts before they appear (optional moderation).

Remind students to give constructive feedback: agree/disagree and explain why.

Synchronous Session Norms

Keep microphones muted unless speaking.

Assign roles in breakout groups (e.g., speaker, recorder, proof-checker).

Use chat for quick questions without interrupting.

Participation Rubric (suggested)

2 points: Accurate Padlet post with congruence justification.

2 points: Two constructive comments on peers’ posts.

1 point: Active participation in whiteboard breakout activity.

Teacher Note: Share these rules with students before starting the module and model what a constructive Padlet comment looks like.