Arcs Teacher Resources
Find Arcs educational ideas and activities
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Practice: Measuring Angles and Using a Protractor and More!
Four fabulous worksheets are included in this resource, all having to do with the measurement of angles. On the first, anglers will use a protractor to determine the degrees of 10 different angles. An arc is drawn on each. On the second, six triangles are depicted for which learners measure various angles.
4th - 6th Math 118 Views 434 Downloads CCSS: Adaptable
Super Shapes Part 2 - Circles
Through the use of Internet, video, and hands-on activities, youngsters learn the parts and characteristics of a circle. This fantastic lesson has some excellent website activities included in the plan. Your kids will have a much greater understanding about circles once they've taken part in this lesson.
5th - 6th Math 10 Views 36 Downloads
How on Earth?
The equator and longitudinal lines make interesting circles to study in terms of arc length. Using Google Earth or a globe, pupils research specific questions about size and distance. This a great activity to bring some real-world application into your classroom.
9th - 11th Math 24 Views 30 Downloads CCSS: Designed
Angles in a Circle
This detailed lesson plan leads your students through an investigation of the relationships between central, inscribed, and circumscribed angles of a circle. The opening activity reviews central and inscribed angles and their intercepted arcs by having learners create problems for a partner to solve.
9th - 11th Math 24 Views 28 Downloads CCSS: Designed
Informal Proofs of the Circumference/Area of a Circle
Use this lesson plan to help your geometers develop informal proofs of the circumference and area of a circle. Working in small groups, students rotate between three stations to complete hands-on activities that illustrate the relationships in the circumference and area formulas.
8th - 10th Math 28 Views 44 Downloads CCSS: Designed
Lesson 11.5 Practice B - Circles
In this circles worksheet, 10th graders solve and complete 13 different problems that include determining the measurement of various angles within a circle. First, they determine the area of each shaded region in the illustrated circles at the top.
10th Math 3 Views 56 Downloads
A complex question looking for the total cost of a stained glass window by calculating area and circumference of a circle. With detailed components, this activity will challenge your designers to figure out if they have enough money to put their masterpiece together.
7th - 9th Math 4 Views 6 Downloads CCSS: Designed
Introduction to Angle Measure
An all-encompassing package provides video clips that demonstrate real-world activities that have to do with angles. After watching the Cyberchase cartoons, learners discuss why a "v" shape is used to measure a turn. A pair of vital worksheets and different-leveled assessments are provided through embedded links.
4th - 6th Math 101 Views 384 Downloads CCSS: Adaptable
Shot Put Arc
Learners complete Part A: Dissecting a Circle. They generate their own chords within the circle. Students measure the various parts of the arc in the shot put pit. The first two measurements, the chord and distance from the midpoint of the chord to the arc, are necessary for carrying-out other calculations.
6th - 8th Math 3 Views 5 Downloads
Angle Relationships in a Circle
Use this detailed lesson plan to guide learners in discovering the relationship between central angles and inscribed angles that intercept the same arc in a circle. Your mathematicians construct circles and angles, then measure the angles and use their data to make conjectures and informally state the Central Angle Theorem.
9th - 11th Math 20 Views 27 Downloads CCSS: Designed
Positive and Negative Angles and Arcs
To better understand that the intersection point of two lines lies inside a circle, learners use their keen measurement skills. They discuss arcs, rays, tangent lines, and reflex angles. Then, they put their skills to work as they observe the relationship between the measure of the angle of intersection of two lines and the measure of the intercepted arcs.
9th - 12th Math 3 Views 1 Download CCSS: Designed
Properties of Circles
Learners study the properties of circles. In this circles lesson, students read a word problem about circles. Learners watch a video about the activity and then practice drawing the circle solution to the problem. Students watch another video segment and discuss the methods in the video.
3rd - 5th Math 5 Views 22 Downloads
A resource that makes for excellent group work as students explore the area and perimeter of different complex designs made up of squares and circles. The commentary gives a clear definition of perimeter, but suggests that group members discuss for themselves what is meant by perimeter of the designs, a mathematical practice, making sense of the problem and persevering in solving it.
6th - 8th Math 7 Views 10 Downloads CCSS: Designed
Roots of the Mariana Arc
Plumb the depths of the Submarine Ring of Fire and explore seismic waves with this lesson. Junior geologists simulate s-waves and p-waves, calculate their speeds, and then apply the data to discover the material that makes up inner Earth. Detailed directions, student handouts, and internet resources provide everything you need to present a memorable lesson on seismology.
9th - 12th Science 7 Views 34 Downloads
The first of two pages displays various angles as the measure of degrees of a circular arc. An explanation is written, and learners are asked to model each by holding up two pencils as the rays. The second page provides instruction on how to use a protractor to measure angles.
4th - 6th Math 30 Views 343 Downloads CCSS: Adaptable
Let's Go Hunting!
Can your geometers find concentric circles on campus? How about supplementary angles or a rectangular prism? Small groups go on scavenger hunts to photograph various geometric objects, then put together a slide show presentation for the rest of the class.
7th - 11th Math 3 Views 6 Downloads CCSS: Designed