HSG-C.A.3

Construct the inscribed and circumscribed circles of a triangle, and prove properties of angles for a quadrilateral inscribed in a circle.

 
5 Lesson(s)
   

Prove Circles Conjectures

Geometry » Unit: Discovering and Proving Circles Properties
Geometry » Unit: Discovering and Proving Circles Properties
Jessica Uy
Sunnyvale, CA
Environment: Suburban
 
Big Idea:

Students will tackle a variety of circles proofs, using construction tools to make sense of their reasoning.

 
Favorites (5)
 
Resources (9)
prove circles conjecture li
   

Circles Unit Assessment

Geometry » Unit: Discovering and Proving Circles Properties
Geometry » Unit: Discovering and Proving Circles Properties
Jessica Uy
Sunnyvale, CA
Environment: Suburban
 
Big Idea:

Through a variety of assessment items, students will demonstrate their understanding of circles properties by using precise academic vocabulary, solving problems, and writing proofs.

 
Favorites (1)
 
Resources (12)
 
Reflections (2)
circles sample test
   

Inscribing Angles

Geometry » Unit: Circles
Geometry » Unit: Circles
Stephanie Conklin
Saratoga Springs, NY
Environment: Suburban
 
Big Idea:

Students will use a folding paper activity to discover properties about inscribed angles and intercepted arcs.

 
Favorites (5)
 
Resources (20)
 
Reflections (1)
circles dripping for inscribing angles lesson
   

Circle Constructions are the Best!

Geometry » Unit: Circles
Geometry » Unit: Circles
Stephanie Conklin
Saratoga Springs, NY
Environment: Suburban
 
Big Idea:

This lesson challenges students to complete three constructions, the first of which is a contest to see who can construct a line tangent to a circle through a given point.

 
Resources (18)
circle constructions are the best image
   

Inscribed and Circumscribed Circles

Geometry » Unit: Circles
Geometry » Unit: Circles
Anthony Carruthers
Pasadena, CA
Environment: Suburban
 
Big Idea:

Stay calm and find your center. In this lesson, students learn to construct the incenter and circumcenter.

 
Resources (18)
 
Reflections (2)
c4 img3
Common Core Math
 
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