Introduction to Fractions Part 4
In this video they are teaching the lowest common denominator. They start with a fraction problem with all different denominators, so they need to find the lowest common denominator. Some examples are done. Video is good quality and good for all students as review or initial learning of the concept.
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This video indicates it is for pre-algebra, however this would be good for anyone who is reviewing or learning addition on a number line. This video shows how to add numbers using a number line, some of the numbers they use start with a negative, then they add a positive number. They show many different examples. They also use the number line to show how to find a missing addend, -10 + x = 2. Video is good quality and good for all students as review or initial learning of the concept.
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The instructor uses an electronic sketchpad to demonstrate how to constucut angles. Â Video discusses vocabulary and symbols associated with angles, ray (sides of the angle), vertex (the point where the rays start). Â It then goes on to use the protractor to measure an angle.Â  It starts with where to put one line of the angle and then where and what to measure.Â  It also instru
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Beginning Algebra: Factoring Trinomials
Taught by Professor Edward Burger, this lesson was selected from a broader, comprehensive course, Beginning Algebra.

In this lesson, you will learn how to factor trinomials using a reverse-FOIL trial-and-error method. You will start by simplifying the trinomial as much as possible, by removing any common factors or grouping any possible combinations. Then, try the reverse-FOIL by first breaking up the squared term. He also gives you a hint that when the last factor of the

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Global Darkness Catastrophe - What Really Killed Dinosaurs? - BBC Science
The disappearance of the plants for a long period of time provides scientists with a clue as to why the dinosaurs were forced into extinction. (02:02) This is a clip from a larger segment.
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Giants of Philosophy video. Video continues with Neitzscheâ€™s discussion of human life and its separation of nature.Â  He says they are grown together, and man is holy nature.Â  Neitzsche reinterprets our human nature in entirely naturalistic terms.Â  He wants to dispel the idea that we were created by God in his image and to draw attention instead to the conditions in life in which human life was really developed.Â Â  He does not th
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v - Initial Sounds
This short clip introduces a selection of images to kick start learning the v phoneme and V grapheme.   Slides are shown of words beginning with the letter v.

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Meet Mr. M Song - The Letter People
This song is from "The Letter People". It introduces Mr. M who has a "munching mouth". Â Puppet characters sing and act out skits using words that start with 'M." Many other "m" words are mentioned in the song as well. (1:46)
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What's a Nano?
Ebony and her cousinÂ Jasmine take you on a trip to the museum to discover what a nano is. Ebony knowsÂ that nanotechnology is helping make electronics, likeÂ her cell phone, smaller and smaller. But that's about allÂ they knew about nanotechnology until theyÂ caught the Amazing Nano Brothers Juggling Show at the Museum of Science in Boston.Â The jugglers introduce the girlsÂ to the nanoworld.Â They learned from the Nano Brothers that a nanometer is one billionth of a meter. The girls thenÂ go o
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Magic School Bus Goes to Seed
Join Ms. Frizzle and the class as they get a bugs-eye view of the school garden and how seeds are created.Â  This Magic School Bus video will cover the following concepts: (1) Seeds are the way that most plants make new plants. The seed is created inside the flower of the plant.Â  and (2) A seed can travel long distances and wait for the conditions to be right before sprouting.Â  Run time 22 minutes.
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Life in Tropical Forests
Describes animals and plants found in tropical forests. Shows video of the specific animals. Also identifies the climate and locations. Mentions the effects of the destruction of the forests on the animals. Run time 1:56.
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Conserving the Canopy
Called "the queen of canopy research," Nalini Nadkarni explores the rich, vital world found in the tops of trees. A unique ecosystem of plants, birds and monkeys thrives in the treetops of the rainforest. Nalini Nadkarni explores these canopy worlds -- and shares her findings with the world below, through dance, art and bold partnerships. Run time 16:27.
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Amazon Rainforest
The tropical rainforests of the world are home to thousands of species of plants and animals -- including many that remain undiscovered by scientists. This video segment from the Race to Save the Planet teaching module "Saving the Diversity of Life" explores both the ecological importance and fragility of the rainforest biome and its organisms. Run time 01:45.
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Desert Biome
The desert biome is characterized by low precipitation, a high rate of evaporation (seven to fifty times as much as precipitation), and a wide daily range in temperature. The dramatic temperature fluctuations are the result of low humidity, which allows up to 90 percent of solar radiation to penetrate the atmosphere and heat the ground during the day, then for this accumulated heat to be released back into the atmosphere at night. Precipitation in deserts, unlike other biomes, is highly irregula
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Life in Temperate Forests
The video quicly described what a temperate forest is and where most are located.Â  It also describes animals and plants found temperate forests. Shows video of the specific animals. Animals include the chipmunk, mice, bears, deer, slugs, snails, beavers, frogs, salamanders, and birds.Â  Briefly addresses how humans have harmed the animals ecosystem and threatened their survival. Run time 1:29.
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Using the Fewest Coins to Show an Amount of Money
Students will learn to use the fewest coins to show an amount of money.Â  Start with the coin of the greatest value and count up. Â User clicks through the slides.Â

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How to Make a Compost
his educational video shows you how to start making your own compost.
Composting is an easy way to use leftovers, and to have a happy,
healthy garden.  We all talk about having a healthier planet, and this
is one great way to get started in your own backyard!

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Industrial Revolution in pictures
This video contains a slide show style presentation about the Industrial Revolution. Amateur video with rock music, no narration. It shows child labor in textile plants.

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Weather Fronts
This video discusses what a front is. They start with an air mass and the transitional zone is called a front. It is hard to tell if it is a cold or warm front. If the warm air is advancing it is a warm front. This video show the symbols that are used by meterologists. It shows how one mass moves over another mass. This is a good, basic video.
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How Changes in Earth's Magnetic Field and Ionosphere Affect Us - Part 4
Part 4 in a discussion on How do changes in Earth's magnetic field and ionosphere affect us? Anya StrÃ¸mme â€“ EISCAT/SRI International. Sheâ€™s working with very high power radar to study the aurora borealis which are better observed at higher latitudes. Sheâ€™s studying particles coming into the atmosphere, heating it, generating currentsâ€”this is where our satellites flyâ€¦this impacts tv reception, GPS, cell phones in a much more dramatic way than we can imagine. Run time 03:16.
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