Skip Counting by 3s to 30
A fun skip counting video and song that provides practice in skip counting by 3's. The slides show the 3s in a grid and represented by objects.  Note:  references "27 angels in heaven."  (01:28)
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Arithmetic of Fractions: Subtraction of Fractions and Mixed Numbers
This professionally-made video from the Math Tutor includes the following concepts: subtraction of improper and proper fractions and also mixed numbers. Some examples from the video include 5/12- 1/3, 5 3/7 - 2 2/3, 7/12 - 2/13, and 4 1/12 - 1 5/16.  The video is in lecture format with an instructor standing in front of a dry erase board.  (10:24)
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Subtracting Fractions (mixed numbers)
This video showsÂ how to subtract fractions and mixed numbers. This video is part of the Mathtrain.com and Mathtrain.TV Project from Mr. Marcos and his middle school students at Lincoln Middle School in Santa Monica, CA. Â Â
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Why SSA and AAA Don't Work as Congruence Shortcuts
This video describes four shortcuts that help students know when two triangles are congruent: SSS, SAS, ASA, and AAS. Knowing only side-side-angle (SSA) does not work because the unknown side could be located in two different places. Knowing only angle-angle-angle (AAA) does not work because it can produce similar but not congruent triangles. (4:06)
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Solving Inequalities
This video involves solving linear inequalities. This video starts off with a black screen because the narrator uses it as a 'chalkboard' by using the Paint Program.
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Graphing Linear Inequalities in Two Variables
This video begins with a simple inequality, then explains how to graph the inequality.Â  The instructor begins by showing how to graph the boundary line, then tells how to show the correct solution set on the graph by shading.Â

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How the Body Works : Units of the Limbic System
The limbic system is a composite structure which lies in the temporal lobes of the brain and in the region of the thalamus. It is concerned with emotions and memory. The amygdaloid bodies are believed to be concerned with aggression. The hippocampus, lying above the parahippocampal gyrus, is concerned with memory. The septum pelucidum is thought to be associated with pleasure reactions. The cingulate gyrus, the fornix and the anterior commissure carry nerve fibers to and from other structures in
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Glo Germs
From Dragonfly TV. As the weather gets colder, kids seem to share a lot more germs. As busy scientists, we don't have time to get sick.Â The DFTV question that is investigated in this clip: How can we avoid spreading germs and viruses to our friends and families? Does it make a difference whether we sneeze into our hands or into our elbows?
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Scales octaves on a piano. This is a wonderful tool to use for instruction for middle and high school age children.
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Cast Iron Plow (Chinese inventions)
A description of the early cast iron plow and its advantages

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Learn about The History of Ancient China 4000 B.C.
This one minute video provides a brief overview of the accomplishments in China in the period around 4000 B.C. At best this is an overview and should be combined with other videos or materials to provide a more indepth look at China during this time.
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How Music Works 1 - Melody - Part 1
Narrator is Howard Goodall.Â  Melody is musicâ€™s most powerful tool when it comes to touching our emotions.Â  Tunes touch our deepest emotions, and are capable of inspiring love, sorrow, faith, and hope.Â  Video discusses vocabulary associated with melody, pentatonic which is the five black keys on the piano.Â  There are three main elements to melody:Â  notes you choose, how high or low the notes are, and the pattern they make one after the other
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Note Durations Explained
This video discusses how to count different not values in a measure. (6:20)
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A Virtual Tour of Martin Luther King's Birthplace
At this websiteÂ there willÂ beÂ a map of the home.Â  Click on a room of the houseÂ and a photograph will appear. Use your mouse to look around the room, or use the controls to zoom in and out. There is also some text that describesÂ the roomsÂ and providesÂ a littleÂ background.
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Martin Luther King "I Have a Dream" speech
The full version of Martin Luther King's famous "I have a dream" speech.
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Martin Luther King, Jr.'s last speech
He was assassinated the next day and speaks of the promised day. (01:16)
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I Have a Dream: Black History Month Celebration
This video was made to celebrate the I Have a Dream speech by Dr. Martin Luther King, Jr. Students play roles of famous African Americans throughout history echoing the words of Dr. King. (05:35)
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History of the N.A.A.C.P., Part 1 of 2
This video features information regarding 'one of the oldest and most influential civil rights organizations in the United States' (Wikipedia, 2009); the N.A.A.C.P.
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History of the N.A.A.C.P., part 2 of 2
This video features information regarding 'one of the oldest and most influential civil rights organizations in the United States' (Wikipedia, 2009); the N.A.A.C.P.
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N.A.A.C.P. Begins - Part 1 of 2
This video documentary by Mr. Jim Sukamp features information regarding 'one of the oldest and most influential civil rights organizations in the United States' (Wikipedia, 2009); the N.A.A.C.P.
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