Curated OER
Circumference and Area
In this circumference and area learning exercise, 6th graders find the circumference and area of circles when the diameter is given. Students complete 9 problems.
Curated OER
Geometry Regents Bimodal
In this geometry activity, students solve problems that are bimodal. They define properties of circles and triangles. There are 117 questions.
Curated OER
Compound Locus
Students investigate circles and compound locus. In this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.
Curated OER
Area of Triangle using the Semi-Perimeter and Radius
Students investigate the properties of circles. In this geometry lesson, students calculate the area and perimeter of a triangle. They identify the perimeter and radius length of a circle.
Curated OER
Circumscribed Polygons
Students investigate polygons and construct ferris wheels. In this geometry instructional activity, students create a circle and differentiate properties of circles and polygons. They compare the relationship between angles and...
Curated OER
The Circle's Measure
Students explore circumference and diameter. In this math lesson, students apply their knowledge of circumference and diameter to solve mathematical riddles. Students apply this knowledge to find circumference and diameter of various...
Curated OER
Space Circles
Fifth graders calculate the diameters and radius of planets as a book is read to them. In this diameter and radius lesson plan, 5th graders read the book Space Circles and calculate the measurements based on the information in this book.
Curated OER
Finding the Angle Measurements in Isosceles Triangles
In this angles worksheet, 9th graders find the angle measurements in four isosceles triangles. Two of these triangles are drawn inside a circle, where two of the sides of the triangles are formed by radii.
Curated OER
Six Activities Regarding Circles and Cylinders
In this circles and cylinders worksheet, students complete six activities answering sixteen questions. These activities include a discovery of the ratio of circumference to diameter and the formula for area of a circle. The...
Curated OER
Circles
In this geometry learning exercise, 10th graders apply the circle segment theorems to determine the indicated segment length. The one page learning exercise contains twenty problems. Answers are not provided.
Curated OER
Circles: Finding Circumference
In this circles worksheet, students find the circumference of 20 circles. Students find the circumference given the radius, diameter, and area of various circles.
Curated OER
Write the Parts of the Circle in the Place Holders
In this parts of a circle learning exercise, students place the names of 6 different parts of a circle in rectangular place holders. They use labels such as cord, secant, diameter, radius, tangent, and center.
Curated OER
Area and Circumference of Circles
Eighth graders find the area and circumference of circles. For this area and circumference of circles lesson plan, 8th graders follow a step by step lesson and then demonstrate the skills on their own with circles they are given.
Curated OER
Perimeter of a Circle Worksheet
In this perimeter of circles learning exercise, students find the perimeter of 6 circles given a diameter. Students find the perimeter in terms of Pi.
Curated OER
Tangent Properties
Students explore properties of tangent lines. In this properties of tangent lines lesson, students discuss the perpendicular relationship between a tangent line on a circle and the circle's radius. Students use that...
Curated OER
Discovering Pi
Sixth graders discover Pi. In this discovering Pi lesson, 6th graders measure the diameter and circumference of various circular objects. Students record their measurements in a table. Students discuss how Pi relates to...
Curated OER
All About Circles
In this all about circles instructional activity, students interactively answer 10 multiple choice questions about circles, then click to check their answers.
Curated OER
Initial Fraction Ideas Lesson 6: Overview
Students use fraction circles to observe fractions in smaller parts and to complete charting and word problem activities. In this fraction lesson plan, students complete chart problems, word problems, and fraction comparing problems...
Curated OER
Learning Circles
In this learning circles worksheet, students trace circle, and draw their own, then pick 5 circles out of a collection of different shapes and color them.
Curated OER
Parts of the Circle
In this geometry skills worksheet, students examine 3 labeled circles and identify the noted items as diameters, chords, radii, or centers.
Curated OER
Parts of the Circle
In this geometry skills worksheet, students respond to 3 questions that require them to examine the part of circles and identify them as diameters, chords, radii, or centers.
Curated OER
Blank Circles
In this circles worksheet, students complete the radius, diameter, and circumference for each circle with one answer given to them. Students complete 4 problems.
Curated OER
Parts of a Circle
In this geometric shapes instructional activity, students respond to questions that require them to identify chords, radii, diameters and centers of 4 circles.
Math Salamanders Ltd.
2D Shapes Circles
In this circles worksheet, students view a set of circles of different sizes. The worksheet is only for reference and does not have associated activities.