This ready-to-print lesson on the Pythagorean Identity covers connecting the identity to the Pythagorean Theorem and using it to find trigonometric values with complete lesson materials and minimal prep time.

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:

• Connect the Pythagorean Identity sin²θ + cos²θ = 1 to the Pythagorean Theorem and use it to solve problems
• Find sin θ, cos θ, or tan θ given one trigonometric value and the quadrant

Standards

F-TF.8 from Common Core State Standards (CCSS)

P.4E from the Texas Essential Knowledge and Skills (TEKS)

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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Permission to copy for single classroom use only. 

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