The History of Valentine's Day
This professional video explores the history and legends surrounding Valentine's Day. The presenter explains the legend of St. Valentine. The end of the video consists of impromptu interviews of customers at a greeting card store. (03:59)
Linear Inequalities - A Visual Proof
An instructor shows why we flip the sign when multiplying or dividing by a negative when solving inequalities. He uses a flip chart and shows several examples including both inequalities and word problems.
How to Divide Inequalities
How to Divide Inequalities. Part of the series: Math Fractions and Equations. When dividing inequalities, treat the equation like any other standard equation. Flip the inequality sign when dividing an inequality by a negative number with help from a math author and teacher.
Graphing Linear Inequalities in Two Variables
This video begins with a simple inequality, then explains how to graph the inequality. 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.
Graphing Systems of Linear Inequalities
In this video, the instructor goes through the steps needed to graph a system of linear inequalities. He discusses slope, shows how to draw the line on the coordinate plane, and explains what section of the graph should be shaded. There is some shadow on the white board which makes it a little more difficult to see at times during the instruction.
World War II: Invasion Of Poland - part 5/5
September 1939 - May 1940 The German and Soviet invasions of Poland, the Winter War, the sinking of the Graf Spee and Britain's apathy during the "phony war" until Britain's defeat in its first military engagement with German land forces in Norway, which led to the rise of Winston Churchill. Interviewees include Lord Boothby, Lord Butler, Admiral Charles Woodhouse, Sir Martin Lindsay and Sir John "Jock" Colville.
Preventing Stroke
Up to 80 percent of strokes that occur in the United States each year could be prevented! In this video, a doctor give practical advice to stroke prevention. 3:33 min.
Music Key Signatures Explained
This is an excellent teaching tool for high school and and advanced musical instumentalist.
Reading sheet Music Part 1
Scales octaves on a piano. This is a wonderful tool to use for instruction for middle and high school age children.
Who Invented Subtraction?
Subtraction was invented in the same way as addition and
counting, in that it has always existed. In this video learn from a mathematics instructor who invented subtraction.
When the Moors Ruled in Spain (4 of 11)
'The description Moors has referred to several historic and modern populations of Muslim (and earlier non-Muslim) people of Berber and Arab descent from North Africa, some of whom came to conquer and occupy the Iberian Peninsula for nearly 800 years' (Moors,Wikipedia, 2009). This video is suitable for older middle school and high school students.
Dinosaur Builder
Step aside, bone diggers and fossil hunters. Scientists are now using computer modeling and a better understanding of living animals to bring dinosaurs back to life, virtually.
Cold War: Soviet Dissolution - part 1/5
1989 - 1991 The U.S. proves the stronger, the Soviet Union implodes. Germany is reunified. Shorn of its empire and communist domination, Russia faces its future with its economy in chaos. The balance of terror that has kept the peace for more than 40 years vanishes. The Cold War has ended without the use of nuclear weapons.
Cold War: Soviet Dissolution - part 2/5
1989 - 1991 The U.S. proves the stronger, the Soviet Union implodes. Germany is reunified. Shorn of its empire and communist domination, Russia faces its future with its economy in chaos. The balance of terror that has kept the peace for more than 40 years vanishes. The Cold War has ended without the use of nuclear weapons.
D-Day to Berlin - The Battle for France (Part 4 of 6)
History Channel Video. 1944, Europe's future hung in the balance. Our 3-part series follows the story of Allied forces--from Normandy to the assault on Germany--and the victories that led to WWII's end in 1945. We begin on the day after D-Day, unfolding over the summer of 1944 as the initial narrow sliver of French coastline gained by the Allies is slowly extended. By the end of August, Allied victory seemed assured. Rommel had been wounded, Hitler was directing the battle, and the German army w
Intro to Judaism terms #11 Kashrut
Video discusses the terms used for Kashrut, the Jewish dietary laws.
Delayed Potty Training for Children With Autism
Delayed Potty Training for Children With Autism. Part of the series: Parenting Basics. Potty training a child with autism can be delayed depending on the abilities of the child, but consulting a behavioral specialist can make the process easier. (1:09)
The Bank of the United States (1st and 2nd)
Video accompanied by text. "One area of particular concern among bankers, businessmen, and government leaders was banking on the frontier. Frontier land was cheap, and speculators would buy large tracts expecting the price to go up as settlers entered the region. In order to finance their investments, speculators borrowed as much as they could from “wildcat” banks that sprang up to cater to this demand. These banks were themselves often speculative in nature, being more interested in making
Carmen Sandiego and The Stolen Smile Show
An animated show in which Carmen steals parts of famous artwork to try to create her own personal masterpiece. She steals eyes from a Van Gogh painting. She steals a nose from a Picasso painting. And, of course, she steals the smile from Da Vinci's famous Mona Lisa. Children can learn about famous artwork from the video.
How to Make Fizzy Bath Bombs
This video gives you step by step directions for making bath bombs using baking soil, oil, and citric acid. The instructor also gives the science explanation behind the craft. You are actually mixing an acid and a base and making a paste ball. They will not actually react with each other until they are dropped in a solution (like water in the bathtub.) This instructor is making a "holiday gift" but the experiement could be used any time of the year. Run time 05:50.
