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Lesson Plan
Curated OER

Perpendicular Segments in a Circle

For Teachers 9th - 12th Standards
High schoolers explore the concept of circles as they construct a circle using a program such as Cabri Jr. Learners construct a chord and a diameter that are perpendicular, then measure the bisected chord and notice that both sides of...
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Lesson Plan
Curated OER

Circumscribing a Circle About a Triangle

For Teachers 9th - 12th Standards
Pupils circumscribe a circle about a triangle. They construct a triangle using Cabri Jr and then circumscribe it. They then use knowledge of perpendicular bisectors and circumcenters to locate the center of the circle and then...
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Lesson Plan
Curated OER

Circle Circus

For Teachers 3rd
Third graders find the radius and diameter of a bubble. In this radius and diameter instructional activity, 3rd graders create bubbles on their desk and find the radius and diameter of the bubble. Students work in partners to define...
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Lesson Plan
Curated OER

Parachutes, Circles and Pi...Oh My!

For Teachers 6th - 7th
Students explore different size circles to discover the relationship between diameter and circumference. In this circles and Pi lesson, students construct simple parachutes using circle patterns of varying sizes. Students predict the...
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Lesson Plan
Mathematics Assessment Project

Sorting Equations of Circles 2

For Teachers 9th - 12th Standards
How much can you tell about a circle from its equation? This detailed lesson plan focuses on connecting equations and graphs of circles. Learners use equations to identify x- and y-intercepts, centers, and radii of circles. They also...
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Lesson Plan
Curated OER

Right Triangles and The Unit Circle

For Teachers 8th - 10th
Learners solve right triangles using trigonometry. In this geometry lesson plan, students use the unit circle to identify different trig values. They identify the six trigonometric identities.
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Lesson Plan
Curated OER

Unit Circle Triangle

For Teachers 11th - 12th
Learners find the different ratios of a right triangle. In this geometry lesson, students apply the concept of the Pythagorean theorem as they identify the different angles and parts of a Unit Circle. They find the ratios of sine,...
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Interactive
CK-12 Foundation

Tangent Graphs: Slope and Angle

For Students 10th - 12th Standards
Learning about tangents doesn't have to be a slippery slope. Pupils drag a point around a unit circle to see how angle affects the slope of a line. They individually answer a set of challenge questions to come to the conclusion that...
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Lesson Plan
EngageNY

Graphing the Tangent Function

For Students 10th - 12th Standards
Help learners discover the unique characteristics of the tangent function. Working in teams, pupils create tables of values for different intervals of the tangent function. Through teamwork, they discover the periodicity, frequency, and...
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Activity
Illustrative Mathematics

Coins in a Circular Pattern

For Teachers 9th - 11th Standards
What starts as a basic question of division and remainders quickly turns abstract in this question of related ratios and radii. The class works to surround a central coin with coins of the same and different values, then develops a...
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Unit Plan
Curated OER

Our “Civilized” Society

For Teachers 11th - 12th Standards
The Scarlet Letter is the anchor text in a four-week unit that examines Hawthorne's novel through the lens of the intolerances found in a supposed civilized society. In addition to their reading, class members watch clips from TV shows,...
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Interactive
CK-12 Foundation

Coterminal Angles: Full Circle

For Students 9th - 12th Standards
Take a terminal side for a spin. Pupils use an interactive to investigate angles of rotation that share the same terminal side. Scholars create coterminal angles and calculate what other angle sizes share the same final position.
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Lesson Plan
EngageNY

Construct a Nine-Point Circle

For Students 9th - 10th Standards
There are an infinite number of points on a circle; can you find nine of them? After putting together a nine-point circle, pupils use constructions and their knowledge of triangle segments to determine the center of the circle. Learners...
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Unit Plan
1
1
Virginia Department of Education

Exploring 3-D Geometry

For Teachers 6th - 8th Standards
Take young mathematicians on an exploration of the world of 3-D geometry with this seven-lesson unit. After first defining the terms perimeter, area, and volume and how they apply to the real world, students continue on to learn the...
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Lesson Plan
Curated OER

Angles in Standard Positions

For Teachers 9th - 11th
Young scholars identify positive and negative angles using the Unit Circle. In this pre-calculus lesson, students identify the different angles on a unit circle using the coordinate plane and the four different quadrants as a guide. They...
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Worksheet
Curated OER

Comparing Areas

For Teachers 2nd - 3rd Standards
Before your scholars know how to multiply side lengths to find an area, give them some practice in simply counting units. They examine shapes that have already been segmented into units, counting them to get the area. There are three...
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Worksheet
Curated OER

Typical Numeric Questions for Physics I - Motion

For Students 9th - 12th
Seven pages with 33 multiple choice questions about motion make up this activity. Calculations must be performed in order to choose the correct answer. Physics majors will solve for angles, displacement, acceleration, speed, and time for...
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Lesson Plan
1
1
National Security Agency

Partying with Proportions and Percents

For Teachers 6th - 8th Standards
Examine ratios and proportions in several real-world scenarios. Children will calculate unit rates, work with proportions and percentages as they plan a party, purchase produce, and take a tally. This lesson plan recommends five...
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Lesson Plan
Curated OER

Our Solar System - Comparing Planetary Travel Distances

For Teachers 7th - 8th
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
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Lesson Plan
EngageNY

End of Unit Assessment, Part 1: Revising Claims and Evidence based on Feedback

For Teachers 7th Standards
What to do with all that feedback? Scholars use colored writing instruments to circle any feedback that relates to the first two rows of the grading rubric. After working on revisions for their papers, learners view the performance task...
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Lesson Plan
EngageNY

Mid-Unit Assessment Part 1: Writer’s Roundtable

For Teachers 7th Standards
Hear ye, hear ye, it's time for a writer's roundtable! Scholars clarify their thinking about their narrative writing project by engaging in a fishbowl discussion about their plans. As members within the inner circle discuss the topic,...
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Lesson Plan
EngageNY

End of Unit 2 Assessment, Parts 1A and 1B: Fishbowl on Screen Time and Adolescents

For Teachers 7th Standards
Here's a surefire way to ensure that class discussions go swimmingly! Using the resource, scholars participate in a Fishbowl activity, forming two concentric circles in the classroom. As the group on the inside of the fishbowl discusses...
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Lesson Plan
EngageNY

End of Unit 2 Assessment, Part 1A: Fishbowl on Better Use of Water in Agriculture

For Teachers 7th Standards
Just keep swimming! Pupils participate in a Fishbowl discussion, sitting in two concentric circles and alternating between speaking and listening roles. During the discussion, they defend a claim about the best way to begin managing...
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Lesson Plan
EngageNY

End of Unit Assessment, Part 1, Continued: Revising Vocabulary and Conventions based on Feedback

For Teachers 7th Standards
Howdy, partner! Scholars partner up to look at the last two rows in the writing rubric. After discussing the details in the rubric about organization and conventions, learners use colored writing tools to circle feedback in their...

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