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Lesson Plan
EngageNY

Arc Length and Areas of Sectors

For Teachers 9th - 10th Standards
How do you find arc lengths and areas of sectors of circles? Young mathematicians investigate the relationship between the radius, central angle, and length of intercepted arc. They then learn how to determine the area of sectors of...
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Assessment
Mathed Up!

Area of Sector and Length of Arcs

For Students 9th - 12th Standards
Viewers learn how to apply proportional reasoning to find area of sectors and arc lengths with a video that starts off explaining how to find the areas of circle sectors and the lengths of arcs. Scholars then practice solving problems...
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Lesson Plan
Virginia Department of Education

Arc Length and Area of a Sector

For Teachers 9th - 11th Standards
What do skateboarding and baked goods have in common with math? You can use them to connect half-pipe ramps and cakes to arcs and sectors. Pupils compare the lengths of three different ramp options of a skate park. They calculate the...
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Interactive
CK-12 Foundation

Length of an Arc: Pi Hour

For Students 9th - 12th Standards
What time is it when the arc length is pi? An interactive displays the measure of the angle created between the hour and minute hand of a clock. Pupils can set the clock to different hours and calculate the arc length based upon the radius.
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Interactive
CK-12 Foundation

Length of a Chord: Distance Across a Ferris Wheel

For Students 9th - 12th Standards
An interactive presents two friends on a ferris wheel with the task of finding the distance between the them. Pupils create the chord between the two friends and calculate its lengths using trigonometric ratios.
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Worksheet
Curated OER

Lengths of Horizontal and Vertical Line Segments

For Students 5th - 7th
Use this lengths of horizontal and vertical line segments practice worksheet to have learners sharpen their problem solving skills as they solve six story problems.
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Interactive
CK-12 Foundation

Length of a Plane Curve

For Students 11th - Higher Ed
Challenge your class to use straight lines when estimating the length of a curve. An engaging interactive allows individuals to place line segments one after another along the arc. Learners determine that the more lines used, the better...
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Worksheet
Doing Maths

Metric Measurements – Length

For Students 4th - 6th Standards
Seven word problems make up this metric instructional activity where scholars convert measurements and find the length of objects in real-world scenarios.
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Lesson Plan
EngageNY

Unknown Length and Area Problems

For Teachers 9th - 10th Standards
What is an annulus? Pupils first learn about how to create an annulus, then consider how to find the area of such shapes. They then complete a problem set on arc length and areas of sectors.
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Worksheet
Doing Maths

Measures of Length

For Students 4th - 6th Standards
A set of ten skill-based problems and two word problems make up a metric learning exercise in which measuring length and converting units of measurement is the focus.
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Lesson Plan
Teach Engineering

Discovering Relationships Between Side Length and Area

For Students 9th - 12th Standards
Consider the relationship between side length and area as an input-output function. Scholars create input-output tables for the area of squares to determine an equation in the first installment of a three-part unit. Ditto for the area of...
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Worksheet
Doing Maths

Measures of Length 2

For Students 4th - 6th Standards
Converting lengths is the focus of a metric worksheet that involves mathematicians to calculate a given number by 1000, and then convert a measurement using kilometers into meters. Finally, learners are asked to solve two word problems...
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Instructional Video21:05
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Flipped Math

Circles and Arc Lengths

For Students 9th - 12th Standards
Discuss all things round and round. Pupils review finding area and the circumference of circles and use them to solve problems. Next, they learn about central angles and their relationships to measures of arcs. Learners then find out how...
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Interactive
CK-12 Foundation

Basic Trigonometric Functions: Ladder Length

For Students 9th - 12th Standards
Climb the ladder to trigonometry. The interactive introduces trigonometric ratios and finding lengths of sides of right triangles created by a ladder and a building. Learners use the interactive to create triangles by moving the top of...
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Lesson Plan
Curated OER

Arc Length Lesson

For Teachers 9th - 11th
Learners find the length of the arc of a circle. In this geometry lesson, students calculate the length of an arc and find the measure of the central angle given the length of the arc. They convert between linear and angular speed. They...
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Worksheet
Curated OER

Arc Length and Sector Area

For Students 10th - 12th
In this arc length worksheet, students find the designated arc length of various circles. They determine the area of each sector. This four-page worksheet contains 24 problems. Answers are provided on the last two pages.
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Worksheet
Curated OER

Arc Length Transparencies

For Students 9th - 10th
In this geometry worksheet, students use an arc length transparency to calculate the circumference and arc length of a circle. There are 18 questions.
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Worksheet
Curated OER

Finding the Distance in Length

For Students 7th
In this distance worksheet, 7th graders solve and complete 10 different problems that include determining the distance in various equations. First, they solve each of the problems by showing their steps taken. Then, students determine...
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Worksheet
Curated OER

Similarity of Length, Area, and Volume

For Students 9th - 11th
In this similarity worksheet, learners determine the length, area and volume of similar figures. This three-page worksheet contains explanations, examples, and 20 problems. Answers are provided on page three.
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Worksheet
Curated OER

Using Trigonometry to Find Lengths

For Students 9th - 11th
In this trigonometry instructional activity, students use trigonometric ratios to find the length of a missing side. This four-page instructional activity contains 18 multi-step problems. Answers are provided on the last two pages of the...
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Worksheet
Curated OER

Length of a Line Segment - Distance

For Students 8th - 9th
Pupils determine the distance between two given points. They use the distance formula to determine line length, as well as the length of the radius of a circle. The Pythagorean Theorem may also be used to determine line length. This...
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Interactive
CK-12 Foundation

Conversion between Degrees and Radians: Arc and Radians Relationship

For Students 10th - 12th Standards
How are arc lengths and radians related? An interactive resource demonstrates the relationship as pupils create arc lengths in a unit circle and compare them to the angle measurements. Questions ask individuals to build upon this...
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Worksheet
Curated OER

Rectangle: Angle and Lengths

For Students 9th - 12th
In this quadrilateral worksheet, students determine the measures of angles and their side lengths of a rectangle. There are 15 questions with multiple parts.
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Lesson Plan
Curated OER

Geometry and Measurement

For Teachers K - 5th Standards
Young geometers explore relationships between units of measure and objects. Three activities provide varied opportunities to practice. Learners calculate the volume of two cylinders made by rolling a piece of paper vertically and...

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