Lesson Planet Article
Curated OER

Thought Experiments in Physics

For Teachers 9th - 12th
Using thought experiments in physics can be incredibly valuable, but there some pitfalls to avoid.
Worksheet
Curated OER

Breaking News English: Russia Issues 5000-Rouble Note

For Students 5th - 10th
In this English worksheet, students read "Russia Issues 5000-Rouble Note," and then respond to 47 fill in the blank, 7 short answer, 20 matching, and 8 true or false questions about the selection.
Organizer
Curated OER

Creating Bonds

For Students 10th - 12th
In this creating bonds worksheet, students create 2-D and 3-D models of the molecular formula provided. Students complete a chart of information about the molecular formula given.
Lesson Plan
Curated OER

Oranges and Stopwatches

For Teachers 4th - 7th
Students begin to recognize that objects have many measurable attributes. They examine how to identify and accurately measure attributes of common objects. Also Students report their measurement findings.
Lesson Plan
Curated OER

All aboard the "Quiet Train"

For Teachers K - 2nd
Pupils identify and define that an orderly line means straight, one student behind the next, and facing forward. Then they practice boarding the quiet train where the teacher is the train captain and that if he/she hears anyone talking,...
Worksheet
Curated OER

Motion Picture Analysis Worksheet

For Students 6th - 7th
For this motion picture worksheet, students analyze a motion picture and complete information for pre-viewing and then viewing the picture. Students also answer several post-viewing sections.
Lesson Plan
Curated OER

Pauli's Magical Water

For Teachers 10th - 12th
Students predict the shape of molecules using VSEPR theory. In this chemistry activity, students differentiate a polar and nonpolar molecule. They discuss why water's polarity is very important.
Unit Plan
Cuemath

Cuemath: Central Angle

For Students 9th - 10th Standards
Learn all about the basic properties of central angles. This lesson targets what is a central angle, central angle formula, central angle calculator, theorem of central angle, how to find central angles, and how to apply them while...
Activity
Texas Instruments

Texas Instruments: Cabri Jr. Inscribed and Central Angles

For Teachers 9th - 10th Standards
This activity uses Cabri Jr. to explore the relationship between inscribed and central angles subtended from the same arc of a circle.
Handout
Math Open Reference

Math Open Reference: Central Angle

For Students 9th - 10th Standards
A handy reference guide to central angles. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
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.
Activity
Analyze Math

Analyze Math: Inscribed and Central Angles in Circles

For Students 9th - 10th Standards
The geometry tutorial investigates the definitions and theorems related to inscribed and central angles in circles. An example with a detailed solution is included.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 8.3 Central Angles and Chords

For Students 9th - 10th Standards
Learn and understand central angles and chords.
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.
Activity
Texas Instruments

Texas Instruments: Relation Between Central Angle and Inscribed Angle Measure

For Teachers 9th - 10th Standards
Students investigate the relationship between measure of central and inscribed angles in a circle.
Activity
Texas Instruments

Texas Instruments: Angles Formed by Intersecting Chords, Secants, and Tangents

For Teachers 9th - 10th Standards
In this activity, students will investigate properties of angles and arcs formed when chords, secants, and tangents intersect and intercept arcs in a circle. They discover several important theorems concerning circles and arc sizes. They...
Activity
University of Georgia

University of Georgia: Arcs, Central Angles, Arc Length & Sector Area

For Teachers 9th - 10th Standards
This site provides practice problems for calculating central angles and calculating arc length.
Handout
Math Open Reference

Math Open Reference: Central Angle Theorem

For Students 9th - 10th
Learn about the Central Angle Theorem with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Activity
Texas Instruments

Texas Instruments: Angles in Circles

For Teachers 9th - 10th Standards
The student will use the Cabri Jr. APP to discover the relationship between inscribed and central angles in a circle.
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.
Unit Plan
Khan Academy

Khan Academy: Inscribed Angle Theorem Proof

For Students 9th - 10th Standards
Proving that an inscribed angle is half of a central angle that subtends the same arc.
PPT
Sophia Learning

Sophia: Finding the Area of a Sector Using the Central Angle: Lesson 2

For Students 9th - 10th Standards
This lesson explains how the central angle can be used to determine the area of a sector and presents several practice problems. Includes answers and a short quiz. It is 2 of 5 in the series titled "Finding the Area of a Sector Using the...
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.
Handout
Wolfram Research

Wolfram Math World: Central Angle

For Students 9th - 10th
This page provides a brief definition of a central angle which is illustrated with a drawing. This site also contains related links.

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