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Lesson Plan
Texas Instraments

Angles in Circles

For Teachers 9th - 12th Standards
Teach your learners how to investigate the relationship between a central angle and an inscribed angle which subtend the same arc of a circle. The dynamic nature of Cabri Jr. provides opportunity for conjecture and verification.
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Worksheet
Curated OER

Volume and Surface Area

For Students 10th
In this volume and surface area worksheet, 10th graders solve and complete 12 different types of problems. First, they find the volume of an isosceles trapezoid. Then, students find the volume and total surface area of a sphere. They...
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Worksheet
Curated OER

Volume and Surface Area

For Students 10th
In this volume and surface area learning exercise, 10th graders solve and complete 12 different types of problems. First, they find the volume and total surface area of a given circle. Then, students find the height and radius of a...
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Lesson Plan
Curated OER

Inscribed Angles

For Teachers 9th - 10th
Students calculate the inscribed angle of a triangle. In this geometry lesson, students identify the angle created by intersection of a triangle and a circle. They see the relationship between the arc and the angle.
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Worksheet
Curated OER

Inscribed Angles and Arcs

For Students 10th
In this inscribed angles and arcs worksheet, 10th graders solve and complete 21 various types of problems. First, they find the measure of each inscribed angle. Then, students find the measure of each angle or arc in a circle with the...
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Worksheet
Curated OER

Circles

For Students 10th
In this circles worksheet, 10th graders solve and complete 8 different types of problems. First, they find the measures of each segment given the center of a circle. Then, students find the length of a side of a triangle shown within a...
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Worksheet
Curated OER

Quiz: Angles and Arcs in Circles - Central and Inscribed

For Students 10th - 12th
For this angles and arcs in circles worksheet, students determine the angle and arc measurement in a circle from given information. This one-page worksheet contains ten problems.
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Worksheet
Curated OER

Inscribed Angles

For Students 10th
In this inscribed angles worksheet, 10th graders solve 11 different problems that are related to determining the measurement of various inscribed angles. First, they name the intercepted arc for an angle, the inscribed angle, and the...
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Worksheet
Curated OER

Inscribed Angles

For Students 10th
For this inscribed angles worksheet, 10th graders solve 13 various types of problems related to inscribed angles in geometry. First, they identify a circle illustrated and each arc of the circle. They, students find the measure of each...
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Lesson Plan
Curated OER

Inscribed Angles

For Teachers 9th - Higher Ed
Students analyze inscribed angles and intercepted arcs and explore the relationships between the two. They investigate the properties of angles, arcs, chords, tangents, and secants to solve problems involving circles.
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Unit Plan
Texas Education Agency

Texas Gateway: Making and Verifying Conjectures About Circles

For Students 9th - 10th Standards
Given information about the relationship(s) witnin one circle or a set of circles, the student will explore special segments and angles of circles.
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Activity
Texas Instruments

Texas Instruments: Going in Circles Inscribed Angles

For Teachers 9th - 10th Standards
This lesson has students discover properties of inscribed angles in a circle. Students use the Geometer's Sketchpad application for the TI-89 to construct a circle and an inscribed angle.
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Lesson Plan
Texas Instruments

Texas Instruments: Relationship of Angles to the Circle

For Teachers 9th - 10th Standards
For this activity, students recognize the relationship of angles to circles. They study the Inscribed Angle Theorem and its corollaries.
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Activity
Texas Instruments

Texas Instruments: Cabri Jr. Inscribed Angles

For Teachers 9th - 10th Standards
This activity uses Cabri Jr to discover that inscribed angles subtended by the same arc in a circle are congruent.
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Activity
Texas Instruments

Texas Instruments: Arcs and Angles: Explore Inscribed & Central Angle Properties

For Teachers 9th - 10th Standards
This activitie uses the power of Cabri Jr. to explore the relationship between inscribed angles and central anlges in cirles.
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Activity
Texas Instruments

Texas Instruments: Cabri Jr. Tangent to a Chord

For Teachers 9th - 10th Standards
This activity uses Cabri Jr. to discover that the angle between a tangent and a chord is equal to the inscribed angle on the opposite side of the chord.
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Activity
Texas Instruments

Texas Instruments: Inscribed Angles Intercepting the Same Arc

For Teachers 9th - 10th Standards
Students investigate the properties of angles inscribed in a circle. They use the drawing and measurement tools of Cabri Jr. to draw and measure certain angles, and establish the relationship between angles that intercept the same arc.
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Activity
Analyze Math

Analyze Math: Central and Inscribed Angles

For Students 9th - 10th Standards
The interactive tutorial examines the properties of central and inscribed angles intercepting a common arc in a circle. Learners use the applet to find central and inscribed angles.
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Interactive
Mangahigh

Mangahigh: Shape: Inscribed and Central Angles in Circles

For Students 9th - 10th Standards
Use theorems to prove ideas of inscribed and central angles in circles.
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Interactive
Mangahigh

Mangahigh: Shape: Inscribed Angles in Circles

For Students 9th - 10th Standards
Use theorems to prove inscribed angles in circles.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Inscribed Angles in Circles

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Apply inscribed angle theorems.
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Activity
CK-12 Foundation

Ck 12: Inscribed Angles in Circles

For Students 9th - 10th Standards
[Free Registration/Login Required] Students will explore how angles are inscribed in circles with this interactive activity. Click learn more to watch a video and click challenge me to answer a practice question.
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Activity
Annenberg Foundation

Annenberg Learner: Geometry: Circles: Inscribed Angles

For Students 4th - 8th Standards
Study inscribed angles in semicircles and quarter-circles. What conjectures can you make about the measure of an inscribed angle in semi- or quarter-circles?
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Unknown Type
Khan Academy

Khan Academy: Inscribed Angles

For Students 9th - 10th Standards
Practice the relationship between inscribed and central angles that are subtended by the same arc length. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.