Using Clothes Hangers for Arts & Crafts Projects for Kids.com
This three minute video starts out as a commercial for a book and publisher, but once that is done it shows young children how to use clothes hangers to make a variety of arts and crafts projects. Many good tips on cutting and organizing too. Great for primary teachers.

Author(s): No creator set

Understanding the Comma
This lesson opens with a brief introduction to the history of punctuation. Seven basic rules for using the comma correctly are presented and explained through humorous examples and illustrations. The original song, "Throw a Comma Down,"completes the lesson and reviews the seven rules. (03:23)
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The Kingdoms of Life by StudyJams
Scientists group organisms, or living things, with similar traits together.  Kingdoms are the largest group, and there are five of them: plant, animal, fungus, protist, and bacteria.  Grouping organisms into kingdoms helps scientists understand the similarities among living things.  Learn more about the five kingdoms with this cartoon animation from StudyJams. A short, self-checking quiz and song are also provided on this link.
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How To Quickly Change Directions on the Soccer Field
Soccer Coach Sean Carlisle demonstrates an effective footwork drill for learning how to quickly change direction on the soccer field during a game. (1:30)
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Nominal Variables
This teacher-made video briefly explains nominal variables and provides a few examples. How do these differ from ordinal variables? (0:52)
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How To Read Aloud 'Chicka Chicka Boom Boom'
by Julie Fowlkes, the lead trainer from BMABF reads aloud to students with the fun book Chicka Chicka Boom Boom. The illustrations are not easily seen and would not make for a good read-aloud in a classroom. However it is a good resource for effective strategies of implementing read-alouds in the classroom. (7:01)
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How to Do Multiplication with Fractions
The instructor uses a small whiteboard in this short two-minute tutorial to demonstrate how to multiply fractions.  The video goes step-by-step and is easy to understand. The instructor does two problems. (Teacher also shows briefly how to reduce fractions.)
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Polygons
Polygons are closed plane figures formed by three or more line segments.  If a figure is open or curved, it cannot be considered a polygon.  Concave polygons have at least one diagonal that does not pass through the interior of the polygon; all of the diagonals in a convex polygon are contained within the figure.  Equiangular polygons have all angles congruent; equilateral polygons have all sides congruent. (02:58)
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How to Determine the Mean
This is a brief how-to video on how to determine the mean (average) that will improve your math skills. The instructor starts out with an easy problem, then moves on to a more complex problem. (05:49)
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Miwa Matreyek's Glorious Visions
Using animation, projections and her own moving shadow, Miwa Matreyek performs a gorgeous, meditative piece about inner and outer discovery. Take a quiet 10 minutes and dive in. With music from Anna Oxygen, Mirah, Caroline Lufkin and Mileece. Miwa Matreyek creates performances where real shapes and virtual images trade places, amid layers of animation, video and live bodies. (11:00)
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Flowers by StudyJams
Flowering plants have many parts that are required for reproduction.  These parts, including the stamen, pistil, and ovary work together to make seeds through the process of fertilization.  This cartoon animated video from StudyJams uses simple terms and clever animation to help teach about flowers.  The video would be a nice addition to a lesson on pollination, fertilization, sexual reproduction, or the parts of a flower.  A short quiz is also included in this link.
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Introduction to Chemistry
This is one of the longer (but, excellent!)Â videos on WatchKnow, however, the viewer will see that the video is digestable in small chunks. The video has beenÂ cut into small 'segments' or 'chapters' on the side. This is one of the free videos on Educator.com; the rest require a subscription fee.
"This lecture is an Introduction to Chemistry.Â Instructor will go over Chemistry as an Experimental Science which studies changes in matter and Energy Distribution before delving into Propertie

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Carnegie Observatories' Wendy Freedman On Hubble and Size of Universe
This spring, Director of the Carnegie Observatories Wendy Freedman spoke at the American Museum of Natural History's Hayden Planetarium about astronomer Edwin Hubble's discovery of the galaxies and the expansion of the universe, how astronomers measure vast distances, and how the Hubble Space Telescope is used to measure the size and age of the universe. Mike Shara, curator in the Department of Astrophysics, sat down with Freedman for an interview in the Hayden Planetarium to discuss the expansi
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Joseph Grenny spoke to Googlers in Mountain View on April 14, 2011 about the book he co-authored: Change Anything: The New Science of Personal Success. About Change Anything: "A stunning new approach to how individuals can not only change their lives for the better in the workplace, but also their lives away from the office, including (but not limited to) finding ways to improve one's working relationship with others, one's overall health, outlook on life, and so on. For example, why is it th
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Activity 7 Â«Video documentation of work progressÂ»
Description not set
Author(s): miride

Application of [Lambda] to the fourth perturbation theory in calculating the equation of state of ra
We have calculated the thermodynamic properties of monatomic fcc crystals from the high temperature limit of the Helmholtz free energy. This equation of state included the static and vibrational energy components. The latter contribution was calculated to order A4 of perturbation theory, for a range of crystal volumes, in which a nearest neighbour central force model was used. We have calculated the lattice constant, the coefficient of volume expansion, the specific heat at constant volume and a
Author(s): Shanes, Fredrick C.

A contingency model of job satisfaction
The present research study was designed to test a contingency model of job satisfaction based on participation in decision making as the antecedent variable and job involvement as the intervening variable. The instruments used to measure the variables were the participation in decision making scale developed by Siegel and Ruh (1973), the job involvement scale by Lodahl and Kejner (1965) and the job satisfaction construct derived from Hoppock (1935). The findings indicate that statistically signi
Author(s): DeRose, Marlene V. Watt.

Guide to the Records of the Civic Club of Allegheny County, 1896-1967
The mission of The Civic Club of Allegheny County has been "to promote by education and organized non-partisan effort a higher public spirit and better social order." This collection contains Civic Club by-laws and constitution; minutes of annual, board of directors, and committee meetings; records documenting The Civic Clubs's legislative campaigns and social services; and voter directories for general and primary elections between 1930 and 1973.
Author(s): This guide to the collection was originally prepar

Guide to the Records of the Young Friends of North America, Committee on Conscription, 1968-1969
The Young Friends of North America, whose members were between the ages of 18-30, established a Committee on Conscription in the fall of 1968. The Committee on Conscription facilitated communication among members who were involved with draft resistance. The Committee also collected information from members who have resisted the draft since the 1940's and from those who were imprisoned for draft resistance. This collection contains photocopies of memoranda, minutes, questionnaires, brochures, bro
Author(s): This guide to the collection was originally prepar

Photographic Prints of Robert A. Cummings, Jr., c.1950's
This collection contains photographic prints of Robert A. Cummings, Jr. The 67 photographic prints from the decade of the 1950's are of the Pittsburgh Area.
Author(s): This guide to the collection was originally prepar