This ready-to-print lesson on similar triangles covers identifying similar triangles and using proportional sides to solve problems.

What's Included

✓ Guided notes with organized key concepts and guided practice for scaffolded learning

✓ Notes video (streaming and download) perfect for confident instruction, absent students, or flipped classrooms

✓ Practice A & B in two comparable forms for homework/classwork flexibility

✓ Exit ticket and warm-up for quick formative assessment and next-day review

Learning Objective

Students will:

• Identify similar triangles by determining if their corresponding angles are congruent and corresponding sides are proportional
• Use the proportionality of corresponding sides of similar triangles to solve problems

Primary Standards Addressed

G.7A from Texas Essential Knowledge and Skills for Geometry (TEKS)

HSG-SRT.A.1b, HSG-SRT.A.2, HSG-SRT.B.5 from Common Core State Standards (CCSS)

Resource Details

This resource is in PDF format. Check out the preview for a detailed look!

Lesson Notes - 3 pages + key

Notes Video - Streaming and download links

Practice A - 2 pages + key

Practice B - 2 pages + key

Exit Ticket (4 per page printable) - 1 page + key

Warm-Up (4 per page printable) - 1 page + key

Exit Ticket (Display) - 1 page

Warm-Up (Display) - 1 page

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Purchase the Triangle Similarity - Geometry Unit 5 to get this lesson plus...

• a total of 5 lessons with notes, practice, exit tickets, and warmups
• a mid-unit review and editable mid-unit assessment
• a unit review and editable unit test
• concept organizers

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