Curated OER
Civil War Literature Circle
Historical fiction can be a valuable asset when learning about the past. Integrate several novels written about the Civil War into your social studies unit, with groups of four working collaboratively to comprehend the novel from...
Mathematics Assessment Project
Inscribing and Circumscribing Right Triangles
High schoolers attempt an assessment task requiring them to find the radii of inscribed and circumscribed circles of a right triangle with given dimensions. They then evaluate provided sample responses to consider how to improve...
Balanced Assessment
Star from Square
Quilting is not only beautiful and unique—it is a mathematical art. Show your classes how to design a quilting block while practicing area and circumference of circles. Scholars create a star from a square and then find the circumference...
Curated OER
Circles
In this circles activity, students fill in 6 fill in the blank statements about circles and solve calculate the answers to 13 questions involving different measurements of circles.
Curated OER
Circle Circus
Third graders find the radius and diameter of a bubble. In this radius and diameter lesson, 3rd graders create bubbles on their desk and find the radius and diameter of the bubble. Students work in partners to define circle terms and...
Curated OER
The Area of a Circle
Eighth graders find the circumference and diameter of several lids, show the relationship of the two measurements and derive the formula for finding the area of a circle. In this area of a circle lesson plan, 8th graders find...
Curated OER
Equations of Circles
Using Cabri Jr. young scholars 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.
Math eBook
Circumference of a Circle
Save trees and practice calculating the circumference of circles with this online interactive task! Of course, if you want individuals to turn it in, you will still need to print copies. There are 20 problems to solve, all of which...
Curated OER
The Geometry of Circles
Students review the parts of a circle, calculate the circumference and area of a circle, and create student-made tests on the geometry of circles using educational software.
Curated OER
Parachutes, Circles and Pi...Oh My!
Students explore different size circles to discover the relationship between diameter and circumference. In this circles and Pi instructional activity, students construct simple parachutes using circle patterns of varying sizes. Students...
Curated OER
Equations of Circles
In this equations of circles worksheet, 10th graders solve 10 different problems that include graphing different circles. First, they convert the equations into center-radius form given the coordinates of the center of the circle and its...
Curated OER
Circles
Students graph circles. In this graphing activity students write equations for circles. Students solve equations for circles and graph the results.
Curated OER
Easy Worksheet: Area and Circumference of Circles
In this area and circumference of circles worksheet, students solve 4 graphing problems. Students graph a circle given an endpoint and center. Students find the area or circumference of the circle they graphed.
Curated OER
Algebra II - Lesson 10-3: Circles
In this equations of circles worksheet, students solve 4 short answer problems. Students find an equation of a circle given the center and radius.
Curated OER
Creating Circles
Students make a circle graph. In this graphing lesson plan, the teacher conducts a class survey, then demonstrates how to make a pie graph. When students are comfortable with the material, they use a worksheet to create their own graph.
Curated OER
Circles Terminology Multiple Choice
In this circles activity, students solve 10 multiple choice problems. Students answer questions about diameter and chord relationships, tangent lines to a circle, circumference, the Pi relationship, etc.
Math Mammoth
Circle
For this circle learning exercise, students find the area and circumference of circles and compare their size using percents. Students determine the are of composite figures made of circles and rectangles. This one-page learning exercise...
Curated OER
Finding the Sum of the Perimeters of 3 Small Circles
In this geometry instructional activity, students find the sum of the perimeters of three small circles. These small circles are tangent to each other and to a larger circle. The centers of the small circles have their...
Curated OER
Circles - Word Problems
In this geometry problem solving worksheet, students answer 8 words problems based on their knowledge of circles, circumference, radius, diameter, and perimeters. They show their work on the sheet between problems.
Raytheon
Geometry: Circles
In this geometric circumference worksheet, 8th graders calculate the circumference of each of the 18 circles. The remaining pages of the worksheet include formulas and lesson ideas on finding the circumference of circles.
Curated OER
Unit Circle
In this Pre-Calculus worksheet, students solve problems involving angles and the unit circle. The four page worksheet contains a combination of twenty multiple choice and free response problems. Answers are provided.
Curated OER
Circles
In this circles learning exercise, 10th graders solve 10 different problems that include determining the chords, secants, and tangents of circles shown. First, they determine 4 different line segments given a circle with secants and...
Curated OER
Graphing and Properties of Circles
In this circles worksheet, student solve 18 circles problems in graphing and short answer format. Students find the equation of a circle given the center and radius and vice versa. Students graph circles given their equation.
Curated OER
Problem-Solving Application: Make a Circle Graph
In this circle graphs activity, students analyze a data table about the activities in a day. Students then use this data to make a circle graph. Students answer 6 questions about the graph.
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