# Circle Equation Teacher Resources

Find Circle Equation lesson plans and worksheets
Showing 1 - 24 of 30 resources
EngageNY

#### EngageNY Geometry Module 5: Circles With and Without Coordinates

For Teachers 9th - 12th Standards
A comprehensive 21-lesson math unit challenges high schoolers to wrap their heads around the geometry of circles. Building on a prior understanding of similarity and congruence, length and area, and the properties of geometric figures,...
6:48
Lesson Planet

#### Equation, Center and Radius, and Intercepts of a Circle

For Students 9th - 12th Standards
Working with standard equations is essential to mathematics. The instructor shows pupils how to apply the equation of a circle to determine the center, radius, and intercepts of a circle. Learners then view three examples that...
Lesson Planet

#### Equations of Circles

For Teachers 9th - 12th Standards
Using Cabri Jr. students construct a circle and determine the equation of the circle they drew by finding the center and the radius. Students use the distance formula to derive the equation of their circle.
Lesson Planet

#### Graphing and Properties of Circles

For Students 9th - 12th
In this circles worksheet, student solve 18 circles problems in graphing and short answer format.  High schoolers find the equation of a circle given the center and radius and vice versa.  Students graph circles given their equation.
Lesson Planet

#### Equations of a Circle

For Teachers 8th - 11th Standards
In this guided activity pupils use rulers, compasses, and graph paper, or Geometer's Sketchpad, to derive the equation of a circle. As they apply the Pythagorean theorem, learners discover how the coordinates of the center and the radius...
5:48
Lesson Planet

#### How to Find the Center and Radius of a Circle

For Students 11th - Higher Ed Standards
Working with conic sections is algebraically intense. Use this video to remind learners of the process of writing a conic in standard form to aid in finding its key features. It explains the steps to writing a circle equation in standard...
Lesson Planet

#### Circle Equations

For Teachers 6th - 12th Standards
Students explore the coordinate plane. In this secondary mathematics lesson, students follow a set of directions to plot points in the coordinate plane.
Lesson Planet

#### Quiz: Equations of Circles

For Students 9th - 12th
In this circles worksheet, students answer 5 questions about a circle.  Students find the center and radius of a circle given an equation.  Students determine if a point lies on the circle.
Lesson Planet

#### Exploring Circle Equations ID: 12554

For Teachers 10th
Tenth graders explore the equations of a circle.  In this geometry lesson, 10th graders examine the equations of a circle in standard form.  Students investigate the changes in the parameters of the equations as they manipulate the graph...
1 In 1 Collection
EngageNY

#### Equations for Tangent Lines to Circles

For Teachers 9th - 12th Standards
Don't go off on a tangent while writing equations of tangent lines! Scholars determine the equations for tangent lines to circles. They attempt both concrete and abstract examples, such as a tangent line to the unit circle through (p, 0).
Lesson Planet

#### Finding the Equation of a Circle

For Teachers 9th - 12th Standards
Tired of going around and around for a resource on circles? Scholars determine the general equation of a circle on a coordinate plane, then participate in an activity matching equations to the radii and centers of the circles they...
7:59
Lesson Planet

#### Equation of a Circle

For Students 9th - 11th Standards
How can you make a circle with x's and y's? A video tutorial explains how to write the equation of a circle with a center at the origin. The tutorial also demonstrates how to analyze the equation. Following the lesson, pupils use the...
1:56
Lesson Planet

#### Equation of a Circle

For Students 9th - 12th Standards
Explore the equation of a circle by examining its key features. A thorough video lesson compares the equation of a circle to its graph by isolating the center and radius. After presenting the standard form of the equation, learners...
3:16
Lesson Planet

#### Graphing Circles: Lesson

For Students 9th - 11th Standards
Explore a standard method to graph a circle. Given the standard form of the equation of a circle, the segment of a basic geometry playlist shows how to graph the circle. The resource works examples of graphing a circle, finding the...
Lesson Planet

#### Circles Not Centered at the Origin: Room Rearranging

For Students 11th - Higher Ed Standards
Where does a circular table fit best? Individuals move a circle representing a table into different quadrants of a room. Pupils determine which equation of the circle will place the table in the appropriate quadrant. A discussion...
Lesson Planet

#### Circles Centered at the Origin: The Map of the Beta Solar System

For Students 11th - Higher Ed Standards
Calculate galactic orbits in a far-out resource. Pupils drag a point on a circle to graph the orbit of a fictional planet. Using the equation, they find points through which the orbit passes. To finish the simulation, users determine the...
Lesson Planet

#### Shooting Arrows through a Hoop

For Students 9th - 12th Standards
The slope makes a difference. Given an equation of a circle and point, scholars determine the relationship of the slope of a line through the point and the number of intersections with the circle. After graphing the relationship, pupils...
Lesson Planet

#### Circles and Parabolas

For Students 9th - 12th
In this circles and parabolas, students write and graph equations for 14 problems. Students locate the center and radius for 8 circles. Students write equations for 4 parabolas.
Lesson Planet

#### Equations of Circles

For Students 10th - 12th
In this equations of circles worksheet, given the radius and the center point, students write the equations of circles. This two-page worksheet contains ten problems.
Lesson Planet

#### Writing Equations of Circles

For Students 10th - 12th
In this writing equations instructional activity, students examine given information and write the equation of a circle in standard form. This four-page instructional activity contains 30 problems. Answers are provided on the last page.
Lesson Planet

#### College Algebra Exam 1 Review: Solving Equations

For Students 9th - 12th
For this college algebra review worksheet, students solve 16 multiple choice problems. Students solve equations, graph linear inequalities, find the equation of a line, and the equation of circles.
9:19
Lesson Planet

#### SAT Prep: Test 4 Section 4 Part 3

For Students 9th - 12th
Math students who have a hard time with the speed of their problem solving will benefit from this video. Sal tackles increasingly complicated geometry and algebra problems in a way that shows them how to find the correct answer - quickly.
Lesson Planet

#### Circles

For Teachers 7th - 10th
Students graph circles. In this graphing lesson plan students write equations for circles. Students solve equations for circles and graph the results.
Lesson Planet

#### Circles

For Teachers 11th - 12th
Students review the definition of a circle and the general formula for a circle to specific problems. They also write the equation for a circle given the center and radius of the circle. Students then define a circle using either the...