It's About Time
Effects of Plate Tectonics
Explore our world from within as you lead young scientists on a thrilling adventure. Pupils examine the location of plate boundaries to determine earthquake and volcano distribution around the globe and explore the cause of hot spots in...
Curated OER
Pre-Calculus Review Sheet
Pre-Calculus has some detailed formulas involved and here is a great resource that lumps then all together for you. Broken up into rectangular, polar, and parametric sections, the conics all include formulas and graphs.
Curated OER
Trigonometry Review Sheet
Get the trig facts fast, and use the review sheet as a guide in the classroom. The worksheet also includes a document version if any changes are needed to the problems. The information includes a small degree/radian chart, a graph of all...
J. Hines, Ed Prgms Intern
Comma Usage
Sometimes it feels like young writers just place commas as they please! Ensure that your pupils uses these important punctuation marks properly by requiring them to study the information here and complete the grammar exercise....
NASA
On Target
NASA's LCROSS mission is dropping a probe into a lunar crater. Groups design a system to travel down a zip line and drop a marble onto a target in the classroom. The groups then modify their designs based upon testing.
CK-12 Foundation
Ck 12: Geometry: Circumference and Arc Length Study Guide
This study guide on circumference and arc length covers key vocabulary, the parts of a circle, and formulas for circumference, area, and arc length. It is available for download with free registration.
Math Open Reference
Math Open Reference: Arc
Learn about arcs with this handy reference guide. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Arc Length
Explore arc lengths with this handy reference guide. Provides a detailed definition, examples, and an animation that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Arc Length
Learn about arc length with this handy reference guide. Provides a detailed definition examples, and an interactive activity that enhances further explanation. Includes links to related topics.
CK-12 Foundation
Ck 12: Geometry: Arcs and Angles Study Guide
This study guide on arcs and angles covers key vocabulary, arc measurement in degrees and radians, congruent arcs, bisecting arcs, and the angles on, inside, and outside a circle. Also covers formulas and theorems. It is available for...
Geometry Help
Geometry Help: Arcs, Angles, and Sectors
Explains the basic concept of arcs, angles, and sectors with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Math Open Reference
Math Open Reference: Angle Measure of an Arc
Learn about the angle measure of an arc with this handy reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Wolfram Research
Wolfram Math World: Arc Length
This site from Mathworld.com defines arc length and provides formulas to find arc length in cartesian and polar coordinates, and in three dimensions.
Purple Math
Purplemath: Sectors, Areas, and Arcs
Explains formulas for areas of sectors of circles and lengths of arcs. Demonstrates how to use the formulas in each of degrees and radians.
Math Open Reference
Math Open Reference: Major and Minor Arcs
Learn about major and minor arcs with this helpful reference tool. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Intercepted Arc
Learn about the intercepted arc with this handy reference guide. Provides a detailed definition, example, and an interactive activity that enhances further explanation. Includes links to related topics.
CK-12 Foundation
Ck 12: Geometry: Properties of a Circle Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide reviews the terminology for circles (tangent, arcs, central angles) and the equation for a circle.
National Council of Teachers of Mathematics
The Math Forum: Defining Geometric Figures
This site provides an in-depth definition of a two-dimensional figure and a three-dimensional figure. Related terms include arcs, vertices, polygon, and many more.
Paul Dawkins
Paul's Online Notes: Calculus Ii: Applications of Integrals
The resource examines applications of integration. Topics investigated are arc length, surface area, center of mass, hydrostatic pressure, and probability density functions. Class notes, definitions, and examples with detailed solutions...
Other
Xenophon Group: Siege of Orleans and the Loire Valley Campaign
The Siege of Orleans (1428-1429) during the Hundred Years' War between France and England is described, including the role of Joan of Arc.
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.
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.
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