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Illustrative Math-Media4Math Alignment

 

 

Illustrative Math Alignment: Grade 7 Unit 3

Measuring Circles

Lesson 1: How Well Can You Measure?

Use the following Media4Math resources with this Illustrative Math lesson.

Thumbnail Image Title Body Curriculum Nodes
Definition--Circle Concepts--Circumscribed Angle Definition--Circle Concepts--Circumscribed Angle Circumscribed Angle

Topic

Circles

Definition

A circumscribed angle is an angle formed outside a circle by two intersecting tangents.

Definition of a Circle
Definition--Circle Concepts--Inscribed Angle Theorem Definition--Circle Concepts--Inscribed Angle Theorem Inscribed Angle Theorem

Topic

Circles

Definition

The inscribed angle theorem states that an inscribed angle is half the measure of the central angle that subtends the same arc.

Definition of a Circle
Definition--Circle Concepts--Inscribed Angle Theorem Definition--Circle Concepts--Inscribed Angle Theorem Inscribed Angle Theorem

Topic

Circles

Definition

The inscribed angle theorem states that an inscribed angle is half the measure of the central angle that subtends the same arc.

Definition of a Circle
Definition--Circle Concepts--Inscribed Angle Theorem Definition--Circle Concepts--Inscribed Angle Theorem Inscribed Angle Theorem

Topic

Circles

Definition

The inscribed angle theorem states that an inscribed angle is half the measure of the central angle that subtends the same arc.

Definition of a Circle
Definition--Circle Concepts--Tangent Line Definition--Circle Concepts--Tangent Line Tangent Line

Topic

Circles

Definition

A tangent line is a straight line that touches a circle at exactly one point.

Definition of a Circle
Definition--Circle Concepts--Tangent Line Definition--Circle Concepts--Tangent Line Tangent Line

Topic

Circles

Definition

A tangent line is a straight line that touches a circle at exactly one point.

Definition of a Circle
Definition--Circle Concepts--Tangent Line Definition--Circle Concepts--Tangent Line Tangent Line

Topic

Circles

Definition

A tangent line is a straight line that touches a circle at exactly one point.

Definition of a Circle
Definition--Circle Concepts--Tangent Line Definition--Circle Concepts--Tangent Line Tangent Line

Topic

Circles

Definition

A tangent line is a straight line that touches a circle at exactly one point.

Definition of a Circle
Definition--Geometry Basics--Incenter of a Triangle Definition--Geometry Basics--Incenter of a Triangle Incenter of a Triangle

Topic

Geometry Basics

Definition

The point where the angle bisectors of a triangle intersect.

Definition of a Circle
Definition--Geometry Basics--Incenter of a Triangle Definition--Geometry Basics--Incenter of a Triangle Incenter of a Triangle

Topic

Geometry Basics

Definition

The point where the angle bisectors of a triangle intersect.

Definition of a Circle
Definition--Geometry Basics--Circumcenter of a Triangle Definition--Geometry Basics--Circumcenter of a Triangle Circumcenter of a Triangle

Topic

Geometry Basics

Definition

The point where the perpendicular bisectors of a triangle intersect.

Description

The circumcenter of a triangle is the point where the perpendicular bisectors of the sides of the triangle intersect. This point is equidistant from all three vertices of the triangle. Understanding the circumcenter is important in solving problems related to triangle geometry and circle properties. For example, the circumcenter is the center of the circumscribed circle that passes through all three vertices of the triangle.

Definition of a Circle
Definition--Geometry Basics--Circumcenter of a Triangle Definition--Geometry Basics--Circumcenter of a Triangle Circumcenter of a Triangle

Topic

Geometry Basics

Definition

The point where the perpendicular bisectors of a triangle intersect.

Description

The circumcenter of a triangle is the point where the perpendicular bisectors of the sides of the triangle intersect. This point is equidistant from all three vertices of the triangle. Understanding the circumcenter is important in solving problems related to triangle geometry and circle properties. For example, the circumcenter is the center of the circumscribed circle that passes through all three vertices of the triangle.

Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles Closed Captioned Video: Geometry Applications: Circles, 3 Closed Captioned Video: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year. The source of light from the top of the dome allows for the exploration of chords, inscribed angles, central angles, and intercepted arcs.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs. Closed Captioned Video: Geometry Applications: Circles, 2 Closed Captioned Video: Geometry Applications: Circles, Segment 2: Circles and Arcs.

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it. This segment explores the properties of circles and shows how arcs can be used to create elliptical shapes.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles. Closed Captioned Video: Geometry Applications: Circles, 1 Closed Captioned Video: Geometry Applications: Circles, Segment 1: The Basics of Circles.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles

In this program we explore the properties of circles. We do this in the context of two real-world applications. In the first, we look at the design of the Roman Coliseum and explore how circular shapes could have been used to design this elliptical structure. In the second application we look at the Roman Pantheon, specifically its spherical dome, to see how the properties of chords and secants help clarify its unique design.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles

In this program we explore the properties of circles. We do this in the context of two real-world applications. In the first, we look at the design of the Roman Coliseum and explore how circular shapes could have been used to design this elliptical structure. In the second application we look at the Roman Pantheon, specifically its spherical dome, to see how the properties of chords and secants help clarify its unique design.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles

In this program we explore the properties of circles. We do this in the context of two real-world applications. In the first, we look at the design of the Roman Coliseum and explore how circular shapes could have been used to design this elliptical structure. In the second application we look at the Roman Pantheon, specifically its spherical dome, to see how the properties of chords and secants help clarify its unique design.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles

In this program we explore the properties of circles. We do this in the context of two real-world applications. In the first, we look at the design of the Roman Coliseum and explore how circular shapes could have been used to design this elliptical structure. In the second application we look at the Roman Pantheon, specifically its spherical dome, to see how the properties of chords and secants help clarify its unique design.

Applications of Circles and Definition of a Circle
Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles Closed Captioned Video: Geometry Applications: Circles

In this program we explore the properties of circles. We do this in the context of two real-world applications. In the first, we look at the design of the Roman Coliseum and explore how circular shapes could have been used to design this elliptical structure. In the second application we look at the Roman Pantheon, specifically its spherical dome, to see how the properties of chords and secants help clarify its unique design.

Applications of Circles and Definition of a Circle
Math Worksheets Math Worksheet Collection: Geometric Shapes (K-2)

Overview

This collection aggregates all the math worksheets around the topic of Geometric Shapes. There are a total of 4 worksheets. Each worksheet includes an answer key. This collection of resources is made up of downloadable PDF files that you can easily incorporate into your instruction.

 

To download the full set of these resources, click on this link.

 

Definition of a Circle, Definition of a Polygon and Definition of a Triangle