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124 resources with the concept chords

Lesson Planet

Circles

For Students 9th - 12th Standards
Don't circle around the topic, but get right to the center with tons of practice regarding circles in geometry. The note-incorporated worksheet provides guided practice through many topics such as central angles, inscribed polygons and...
EngageNY

EngageNY Geometry Module 5: Circles With and Without Coordinates

For Teachers 9th - 12th Standards
A comprehensive 21-lesson math unit challenges high schoolers to wrap their heads around the geometry of circles. Building on a prior understanding of similarity and congruence, length and area, and the properties of geometric figures,...
2:53
Lesson Planet

Segments from Chords: Lesson

For Students 9th - 11th Standards
Strike a chord length. The section of a larger playlist on geometry introduces the relationship relating lengths of intersecting chords. Using the relationship, the video shows how to find lengths of segments of the chords.
3:09
Lesson Planet

Angles On and Inside a Circle: Lesson

For Students 9th - 11th Standards
A video introduces methods to find the measure of angles whose vertex is on and inside a circle. Within examples, the section of a larger playlist on basic geometry incorporates several angle measurement theorems.
Lesson Planet

Project-Based Songwriting

For Teachers 9th - 12th
Project-based learning in a music theory class? Take note. Young songwriters compose, record, copyright, and promote their original songs. They even design their own CD cover.
Lesson Planet

Using Music to Tell a Story or Describe a Scene

For Teachers 9th - Higher Ed Standards
Young composers demonstrate their understanding of the stylistic features of descriptive music, including pitch, tempo, dynamics, rhythm, and timbre, by developing a melody and countermelody for a main character in a story. As part of...
4:58
Lesson Planet

Chords in Circles: Lesson

For Students 8th - 11th Standards
Strike a chord with four theorems. The segment of a playlist on geometry introduces four basic theorems about chords in a circle. Theorems include the relationships between diameters and chords, congruent chords and arcs, and congruent...
4:13
Lesson Planet

How Do You Find the Center of a Circle?

For Students 9th - 12th Standards
The center of the circle is the center of attention for the resource. A brief video in the Socratica Geometry playlist shows how to find the center of a circle not on the coordinate plane. The method here is to construct the...
Lesson Planet

Circles with Angles

For Students 9th - 12th Standards
Three angles meet at an arc ... have you heard that one before? The resource contains a diagram with a circle and three angles that intersect the circle at the same points. Pupils determine the type of each angle and its measurement,...
Lesson Planet

Central and Inscribed Angles

For Students 9th - 12th Standards
The measure depends upon the location of the vertex. Pupils describe the relationship between central and inscribed angles that intercept the same arc and then provide a diagram to illustrate their descriptions.
Lesson Planet

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.
Lesson Planet

Angles, Arcs, and Segments in Circles

For Teachers 9th - 11th Standards
Investigate relationships between angles, arcs, and segments in circles. Pupils use geometry software to discover the relationships between angles, arcs, and segments associated with circles. Class members use similar triangles to...
Lesson Planet

Quadratic Curve of Best Fit

For Teachers 10th - 12th Standards
Class members create a table of the number of chords that can be drawn given the number of points on a circle. Pupils analyze the data created, find a function to fit to it, and use the function to make further predictions.
Lesson Planet

Area and Circumference of Circles

For Students 8th - 10th Standards
Don't go around and around, help your class determine amounts around and in a circle with a video that connects circumference to the perimeter or the distance around an object. The resource includes 14 questions dealing with circles and...
4:01
Lesson Planet

Intersecting Chords of Circles

For Students 9th - 12th Standards
Strike a chord with your classes! Use the video to demonstrate the relationship between intersecting chords in a circle. The instructor includes an example that involves a quadratic equation and extraneous solution. 
1 In 1 Collection
EngageNY

Geometry Module 5: End-of-Module Assessment

For Teachers 9th - 12th Standards
The lessons are complete. Learners take an end-of-module assessment in the last installment of a 23-part module. Questions contain multiple parts, each assessing different aspects of the module.
1 In 1 Collection
EngageNY

Secant Lines; Secant Lines That Meet Inside a Circle

For Teachers 9th - 12th Standards
Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.
1 In 1 Collection
EngageNY

Geometry Module 5: Mid-Module Assessment

For Teachers 9th - 12th Standards
How can you formally assess understanding of circle concepts? Pupils take a mid-module assessment containing five questions, each with multiple parts.
1 In 1 Collection
EngageNY

Arcs and Chords

For Teachers 9th - 10th Standards
You've investigated relationships between chords, radii, and diameters—now it's time for arcs. Learners investigate relationships between arcs and chords. Learners then prove that congruent chords have congruent arcs, congruent arcs have...
1 In 1 Collection
EngageNY

Circles, Chords, Diameters, and Their Relationships

For Teachers 9th - 10th Standards
A diameter is the longest chord possible, but that's not the only relationship between chords and diameters! Young geometry pupils construct perpendicular bisectors of chords to develop a conjecture about the relationships between chords...
1 In 1 Collection
Lesson Planet

Unit 5 Math Vocabulary Cards (Grade 6)

For Students 6th Standards
Acute angle, line of symmetry, and vertex are a few terms you'll find in a set of 90 flashcards designed to reinforce math vocabulary. Included in the set are two types of cards; a word card printed in bold font, and a definition card...
1 In 1 Collection
Lesson Planet

Unit 6 Math Vocabulary Cards (Grade 5)

For Students 5th Standards
Acute angles, nets, and vertices are only a few terms that a set of flash cards includes. Among the 108 cards, two types are available; word cards printed in bold-faced lettering, and corresponding definition cards equipped with an...
Lesson Planet

Identifying Major and Minor Triads 1

For Students 3rd - 6th
Here's a major and minor triads worksheet that asks young musicians to name the root, third, and fifth notes and the chord the notes produce.
Lesson Planet

Circle Folding

For Teachers 1st - 9th Standards
Your young mathematiciaans collaboratively brainstorm the geometric properties of a circle in this vocabulary rich, geometry lesson plan. Step by step a plethora of properties and shapes emerge as learners fold their circles to create...