Lesson Planet
Search educational resources
  • Sign In Try It Free
  • AI Teacher Tools
    • Discover Resources Search reviewed educational resources by keyword, subject, grade, type, and more
    • Curriculum Manager (My Content) Manage saved and uploaded resources and folders To Access the Curriculum Manager Sign In or Join Now
    • Browse Resource Directory Browse educational resources by subject and topic
    • Curriculum Calendar Explore curriculum resources by date
    • Lesson Planning Articles Timely and inspiring teaching ideas that you can apply in your classroom
    • Our Story
    • Frequently Asked Questions
    • Testimonials
    • Contact Us
  • Pricing
  • School Access
    • Your school or district can sign up for Lesson Planet — with no cost to teachers
      Learn More
  • Sign In
  • Try It Free
Unit Circle: Special Angles—Just Know One Lesson PlanUnit Circle: Special Angles—Just Know One Lesson Plan
Publisher
Alabama Learning Exchange
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 12th
Subjects
Math
2 more...
Resource Type
Lesson Plans
Audiences
For Teacher Use
1 more...
Duration
1 hr
Instructional Strategies
Guided Practice
1 more...
Technology
Projection
Presentation
Internet Access
Usage Permissions
Fine Print: Educational Use
Lesson Plan

Unit Circle: Special Angles—Just Know One

Curated and Reviewed by Lesson Planet
This Unit Circle: Special Angles—Just Know One lesson plan also includes:
  • Unit Circle Quadrant Values (.pptx)
  • Special Right Triangles—Review Work (.docx)
  • I Have, Who Has Unit Circle Card Game (.docx)
  • Blank Unit Circle (.pdf)
  • IXL Learning—Reference Angles (Accelerated Students)
  • IXL Learning—Special Right Triangles (Extra Practice)
  • IXL Learning—Converting Between Radians and Degrees (Extra Practice)
  • Join to access all included materials

It's all about the patterns! Young scholars learn that the unit circle repeats itself in all four quadrants. Using these patterns, they evaluate the sine, cosine, and tangent of special angles.

27 Views 20 Downloads
CCSS: Designed

Concepts

unit circle, special right triangles, radians, degrees, reference angle

Additional Tags

math

Instructional Ideas

  • Have pupils draw the special right triangles in the first quadrant as reference in the other three quadrants
  • Following the lesson, have pupils evaluate trigonometric expressions of special angles using whiteboards until all can answer efficiently

Classroom Considerations

  • Expects a solid understanding of special right triangles relationships

Pros

  • Includes intervention strategies for struggling individuals
  • Provides all necessary handouts and resources

Cons

  • None

Common Core

HSF-TF.A.3

View 41,189 other resources for 9th - 12th Grade Math

© 1999-2026 Learning Explorer, Inc.
Teacher Lesson Plans, Worksheets and Resources

Sign up for the Lesson Planet Monthly Newsletter

Open Educational Resources (OER)

  • Health
  • Language Arts
  • Languages
  • Math
  • Physical Education
  • Science
  • Social Studies
  • Special Education
  • Visual and Performing Arts
View All Lesson Plans

Discover Resources

  • Our Review Process
  • How it Works
  • How to Search
  • Create a Collection

Manage Curriculum

  • Edit a Collection
  • Assign to Students
  • Manage My Content
Contact Us Site Map Privacy Policy Terms of Use