Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Joan of Arc
This young peasant girl, with soul sensitive to impressions from brooding over her country's wrongs and sufferings, saw visions and heard voices which bade her undertake the work of delivering France, She was obedient unto the heavenly...
National Council of Teachers of Mathematics
The Math Forum: Problems Library Geometry Triangles
This site contains a wealth of problems that deal with the basic definitions of medians, altitudes, angle bisectors, and perpendicular bisectors or the defining characteristics of the different types of triangles. There are also...
Other
Just France: History of France
A detailed text-based account of the history of France from earliest times to the present. Included in the history are Gaul, Roman Empire, Franks, Charlemagne, Joan of Arc, French monarchy, French Revolution, establishment of a Republic,...
OpenStax
Open Stax: Rotation Angle and Angular Velocity
In the following interactive students will begin to define arc length, rotation angle, radius of curvature and angular velocity. They will also calculate the angular velocity of a car wheel spin.
Oswego City School District
Regents Exam Prep Center: Circles and Angles
A wealth of material to supplement classroom instruction on circles, angles in circles, and arcs. Find lessons with formulas, diagrams, and example problems with step-by-step solutions, multiple-choice practice quizzes, and activity...
Texas Education Agency
Texas Gateway: Circular Motion & Gravitation: Rotation Angle & Angular Velocity
By the end of this section, you will be able to define arc length, rotation angle, radius of curvature, and angular velocity; and to calculate the angular velocity of a car wheel spin.
Other
Amphibian and Reptile Conservation: Natterjack Toad
Description of the Natterjack Toad, including how to identify it, and its life cycle. It also provides a video [6:06] of an edition of the Living World with Lionel Kellaway, focussing on the natterjack chorus.
CK-12 Foundation
Ck 12: Geometry: Circles: Segments and Lengths Study Guide
This study guide on circles covers some vocabulary and theorems about segments and lengths. It is available for download with free registration.
National Endowment for the Humanities
Neh: Picturing America: Black Hawk: Sans Arc Lakota Ledger Book [Pdf]
Information about and analysis of the drawings of Black Hawk, a Lakota spiritual leader who produced a series of drawings in the 1880s that document Lakota customs and ceremonies.
Other
M Hon Arc: Earl's Perl's
An index to Perl software programs, resources, and libraries available on the World Wide Web.
US Geological Survey
U.s. Geological Survey: Hotspots: Mantle Thermal Plumes
Learn more about the hot spot theory developed in 1963 by the Canadian geophysicist J. Tuzo Wilson. Diagrams help you visualize the way hot spots formed geologic structures such as the Hawaiian Islands.
Other
Microeconomics Chapter 6: Price Elasticity of Supply
Scrolling down towards the bottom of this site, there are equations, diagrams, and some general information concerning price elasticity of supply.
TeachEngineering
Teach Engineering: Reflecting on Human Reflexes
Students learn about human reflexes, how our bodies react to stimuli and how some body reactions and movements are controlled automatically, without thinking consciously about the movement or responses. In the associated activity,...
Other
The Chauvet Pont D'arc Cave
See pictures in the "album" of animals painted on the cave walls, a history of the discovery of the cave, and links to other sites.
National Museums Liverpool
Liverpool Museums: The Sun Tracker
This simulation allows the user to see the sun's arc in the sky anywhere in the world at any time. By changing the season settings the user can see how seasons affect the height of the sun's arc.
Khan Academy
Khan Academy: Challenge Problems: Inscribed Angles
Solve two challenging problems that apply the inscribed angle theorem to find an arc measure or an arc length.
Curated OER
Picture of Joan by P. Dubois
Part of a larger religious site dedicated to St. Joan of Arc, these FAQs can be helpful in understanding the myths surrounding this historic figure.
Curated OER
A View on Cities: Paris: Statue of Jeanne D'arc
Statue of Jeanne d'Arc (Joan of Arc) (Paris)
Texas Instruments
Texas Instruments: Applications of Integrals
Use the TI-89 to find the area between curves, find arc length, and solve first and second order differential equations. Examples in the activity use calculator screenprints and keystroke instructions to demonstrate the use of the...
TED Talks
Ted: Ted Ed: Why Tragedies Are Alluring
The story goes something like this: A royal, rich, or righteous individual makes a mistake that sends his or her life spiraling into ruin. It's the classic story arc for a Greek tragedy, and we love it so much that we continue to use it...
Mangahigh
Mangahigh: Shape: Circumference of a Circle
Determine the circumference of a circle or simple arc lengths.
Khan Academy
Khan Academy: Inscribed Angles
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.
Illustrative Mathematics
Illustrative Mathematics: G Mg Indiana Jones and the Golden Statue
The goal of this task is to provide an introduction to the sometimes subtle use of density and units related to density, in a simple and fun context with minimal geometric complexity. Includes video showing the opening scene of Raiders...
Illustrative Mathematics
Illustrative Mathematics: Making a Clock
Learning to tell time is a skill that needs to be practiced often in the classroom. For this activity, the students sit in a large arc/rainbow in order to make a giant clock to practice telling time. Instructions for making the clock,...
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