+
Worksheet
Mt. San Antonio Collage

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 instructional activity provides guided practice through many topics such as central angles, inscribed...
+
Lesson Plan
1
1
California Department of Education

Tension and Release: Creating Mindful Harmony (CTE)

For Teachers 9th - 12th
Perhaps the Doobie Brothers said it best when they sang, "Listen to the Music." With the third of four lessons from the Changing One's Tune: A Music Therapy STEM Integrated Project series, pupils discover the connection between music and...
+
Instructional Video13:36
2
2
Flipped Math

Unit 11 Review: Circles

For Students 9th - 12th Standards
Solve problems around a circle. Pupils watch a video that shows how to apply concepts about circles and related angles and segments to find solutions to word problems. Learners then review the different concepts from the unit in...
+
Instructional Video16:21
2
2
Flipped Math

Secants and Tangents

For Students 9th - 12th Standards
Put the vertex in, put the vertex out. Pupils explore theorems about the relationships of lengths of segments and angles of line segments that intersect inside or outside the circle. Learners use the theorems to solve problems involving...
+
Instructional Video19:13
2
2
Flipped Math

Chords and Arcs

For Students 9th - 12th Standards
Congruence breeds congruence. Pupils learn three more circle theorems dealing with congruent chords and arcs. Learners use the theorems to find the measures of chords and arcs in circles by applying previously learned concepts in the...
+
Lesson Plan
Smithsonian Institution

Songs, Sounds and Stories from the Georgia Sea Islands

For Teachers K - 12th
American music is the result of the influence of many cultures, including the traditions brought by the African slaves. Young scholars study the polyrhythms, the call-and-response format, and the vocal improvisations of the Gullah...
+
Unit Plan
Johnny Mercer Foundation

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.
+
Activity
Leading Learner

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...
+
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.
+
Lesson Plan
Virginia Department of Education

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 Plan
Virginia Department of Education

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.
+
Assessment8:43
Mathed Up!

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...
+
Lesson Plan
West Contra Costa Unified School District

Arcs and Angles

For Teachers 9th - 12th
Noah didn't construct this kind of arc. High school scholars first explore how angles can be formed in circles. They then learn relationships between angles and arcs by conducting an exploratory activity where they position and draw arcs...
+
Assessment
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.
+
Lesson Plan
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.
+
Assessment
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.
+
Lesson Plan
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...
+
Lesson Plan
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...
+
Printables
1
1
Houghton Mifflin Harcourt

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...
+
Printables
1
1
Houghton Mifflin Harcourt

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...
+
Worksheet
Music Teaching Resources

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.
+
Worksheet
Special needs in Music

Music Work Sheet (Special Ed)

For Students K - 12th
Music is beneficial for all learners. Help your learners with special needs learn about different styles of music, as well as the ways that music is represented on paper, with 30 different worksheets. 
+
Lesson Plan
Curated OER

Simple Chordal Harmony

For Teachers 7th - 12th
Practice makes perfect, especially when playing a musical instrument. This lesson examines simple chordal harmony, melody, and playing with accompaniment. Learners listen to a series of songs that exemplify the concept then play a...
+
Worksheet
Curated OER

Music Composition

For Students 6th - 12th
Are your learners ready to compose their own music? If so, this worksheet will help them do it. The sheet is broken into several staffs where they write the tune, riff, and chords. They can put them together to create a unique piece....