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The Rock Cycle
Here is an outstanding video that is produced and narrated by a young scholar. He does a fabulous job explaining what the three types of rocks are and how they interact with each other in the rock cycle - which is how rocks actually...
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What is DNA?
What exactly is DNA? How is it formed? What is its purpose? Mr. Anderson explains the basics of DNA using visual information, clear lecture style descriptions, and his own unique flare. Tip: After lecture send home this video to provide...
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Radiation
Two types of radiation are discussed in this conversation between a professional and a preteen scientist. Solar rays and galactic cosmic rays are extremely powerful and need to be shielded against when astronauts travel in space....
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Korean War
If you are looking for a well-produced synopsis on The Korean War, this video could be for you! In just under seven minutes, the narrator takes viewers through the causes of the war, and all of the many twists and turns that occurred;...
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Blue Whale
Staring out onto the ocean is often soothing and calm, but take a dip beneath the waters to find plenty of sounds and activity! This video clip studies the sounds of blue whales. Find out what their pulsing sounds might mean in this...
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Bears
Take a good look into the lives of bears in this video. It focuses on polar bears and kodiaks. Did you know the reflection of the sun is what makes polar bear fur white?
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A Tour of the Cell
The differences between prokaryotic and eukaryotic cells are explained and the parts of each are highlighted. Discover the major organelles found in an animal cell and each of their functions. Paul Andersen does an excellent job once...
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Photosynthesis
Mr. Anderson, the talented Smart Board presenter and biology teacher, shows a satellite image of where photosynthesis is occurring all over the planet. He draws on a series of computer graphics of the cell and mitochondria as he speaks....
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Exploring Oceans
Did you know that life in the sea generates 70% of our oxygen? If it weren't for the water, we wouldn't be here! Discover underwater mountains and volcanoes and take a glimpse at our negative global impact. What can you do to reverse...
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Biodiversity
Jaguars feed on 87 different species, making it a keystone species. What happens when such a critical link of the food chain goes missing? Mr. Andersen identifies different keystone species according to ecosystem, and he explains the...
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Cell Cycle, Mitosis and Meiosis
Aren't mitosis and meiosis the same thing? A helpful flow chart demonstrates the difference between mitosis and meiosis on Paul Andersen's Smart Board. Time lapse videos include show mitosis and cytokinesis.
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Triangle Medians and Centroids
The terminology used in geometry, including such words as centroid and median are discussed in this video. Through this lecture, young mathematicians can see a visual representation both median and centroid. Also, a proof showing how to...
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The Angle Game
A motivating activity is coupled with the use of algebra to explore the process for identifying the value of an angle. Somehow, it feels like a bit like magic when Sal shows the solution for the final problem. Also, it would be...
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Solving Equations with the Distributive Property 2
The instructor demonstrates how to use the distributive property to get rid of the fractions in an equation. Remember to have learners plug their answers back into the original equation in order to check their work.
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Similar Triangles
Although a rather complicated topic, this video manages to clearly explain the concept of solving problems involving similar triangles. It employs problem solving to determine whether two figures are similar triangles. In addition, it...
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Recognizing Direct and Inverse Variation
Sometimes it is not always obvious which equations are direct variation and which are inverse variation. In this video, five different equations are considered. Each is manipulated and rewritten to determine whether there is a direct or...
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Quadratic Formula (proof)
This exciting video takes all of the mystery out of the quadratic formula. By watching this video, learners gain an deeper understanding of the quadratic formula and the process of completing the square. Sal shows a step-by-step proof of...
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Pythagorean Theorem All
As the second in a series on the Pythagorean Theorem, this lecture delves into some more difficult problems. Primarily, it examines the process for finding the value of a hypotenuse. It is particularly helpful because the example problem...
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Proof: A(logB) = log (B^A), log A - log B = log (A/B)
Here the proofs for two logarithm properties are shown. First, the Power Property of Logarithms is proved using the definition of a logarithm and the rules of exponents and then, the Quotient Property is proved is a similar fashion.
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Point-Slope and Standard Form
Given two points on a line, this video shows how to write the linear equation in point-slope form, slope-intercept form, and standard form. First, Sal reviews each of these forms, then calculates the slope, writes the equation in...
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Patterns in Sequences 2
This video looks again at finding the algebraic pattern in sequences. In the example, we are looking at a figure where a number of toothpicks (or lines) are added each time, and you need to find how many toothpicks will be in the 50th...
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System of Equations for Passing Trains Problem
Here is a challenging motion problem about two different length trains and how long it takes them to pass each other going in the same direction and opposite directions. At first glance, there doesnÕt seem to be enough information given...
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Part 2 of the Proof of Heron's Formula
Picking up where the prior installment in the series on HeronÕs formula ended, Sal provides a deeper, more detailed explanation of this topic.
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Part 1 of Proof of Heron's Formula
Providing the first installment in a series devoted to the exploration of Heron's Formula, this video is a high-level experience that delves into a proof using algebra. It demonstrates a step-by-step process for finding the area of a...