: How to Draw Anthropomorphic Dogs & Cats
Learn how to draw dogs and cats that have some human qualities, called anthropomorphism, with expert cartoon drawing tips. Watch and learn from the artist's drawing. . Step-by-step narration by artist Daniel Bissell. English captions. (1:30)
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How to Draw Cartoon Animals : How to Draw Dinosaurs
Learn how to draw the basic elements of a dinosaur and adding various details to create a brontosaurus and a T Rex with expert cartoon drawing tips.  Step-by-step narration by artist Daniel Bissell. English captions. (1:35)
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Digestion of Types of Food
Animation shows how proteins, fats, and carbohydrates are digested by the digestive system with the use of different enzymes. Grades 7-12. 2:45 min.
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The Digestion Process
This video describes the digestion process. It explains it is the process by which the body breaks down food so it can absorb nutrients. Chewing food is called mechanical digestion; chemical digestion occurs in the stomach and small intestines. There are graphics and images to illustrate the explanation in detail.
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The Final Stage in Digestion
This very short video shows what happens when the digestion process comes to an end. It explains that solid waste is produced at the end of digestion.
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Muscle Contraction
Shows how ATP molecules are used to make the myosin move and push the actin fiber to make the muscle contract. Narrated animation with labels for the parts; very detailed. Grades 9-12. 58 sec.
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Primes Explained
This is one of three videos a team and I did to try using video to convey prime number ideas to middle school students. This one takes a more traditional approach, with me at a whiteboard explaining what primes are. A goal was to jazz it up, in terms of sound effects and the like, just enough to get the message across. This video is part of the video collection at NextVista.org (http://nextvista.org), a proud partner of Curriki.
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Solving Linear Systems of Equations Using Substitution
Solving Linear Systems of Equations Using Substitution - 3 complete examples are shown.
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Systems of Equations
Systems of equations. This video starts off with a black screen because the narrator uses it as a 'chalkboard'. This video is appropriate for older middle and high school students.
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Solving Systems by Substitution - Math Help
The instructor uses a white board for demonstration and this video is suitable for high school students. Students learn to solve a system of linear equations by substitution, by first isolating one of the variables in the system, then substituting its value for the corresponding variable in the other equation.
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Solving Systems by Graphing - Algebra Help
The instructor uses a white board for demonstration and this video is suitable for high school students. Students learn to solve a system of linear equations by graphing. The first step is to graph each of the given equations, then find the point of intersection of the two lines, which is the solution to the system of equations. If the two lines are parallel, then the solution to the system is the null set. If the two given equations represent the same line, then the solution to the system is th
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Solving Systems of Equations by Addition and Subtraction
This video discusses solving systems of equations through addition and subtraction.  Various examples are shown and the narrator solves the problems using a smart board. The problem examples appear a bit faint and small but are clear and dark when being solved with a marker.

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Solving Systems of Equations by Substitution
This lesson is for ntermediate Algebra Level.  In the lesson, Professor Burger shows how to solve systems of equations using a technique known as substitution. In this approach, students solve one equation for one of the variables (eg y) and then plug the value (what y is equal to) into into the other equation (anywhere a y appears). This substitution will allow you to solve for x and then in turn solve for y.  Professor Burger walks the viewer  through several different types of
example
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Conic Sections - Circles - Yay Math
This video is an introduction to circles. The instructor explores the effect of changing parameters in the equation and graphing circles on a co-ordinate plane. He also instructs how to find the radius, center, and points on circumference. White board in a class setting, some interaction, engaging, several examples of increasing complexity. The discussion is clear and understandable. (06:49)
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Conic Sections - Parabolas - Yay Math
Exploration of the parabola. Video reviews the axis of symmetry, the focus, the vertex. White board in a class setting, some interaction, engaging, several examples of increasing complexity. The discussion is clear and understandable. Preview - full version at http://video.google.com/videoplay?docid=-8824761396988762182&q=source:012956945238798337823&hl=en Produced by Robert Ahdoot, yaymath.org
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Graphing Quadratic Equations (Parabolas) - Yay Math
An introductory lesson on graphing quadratic equations, aka parabolas. Demonstrates the role and effect of changing the co-efficients of terms in the quadratic equation on the graph of the parabola. White board in a class setting, some interaction, engaging, several examples of increasing complexity. The discussion is clear and understandable. Preview - full version at White board in a class setting, some interaction, engaging, several examples of increasing complexity. The discussion is
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Solving Quadratic Equations by Graphing
The instructor in this video, Sal Khan, uses a graphing calculator to solve quadratic equations. Mr. Khan uses computer software (with different colors) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. The viewer may want to open the video to 'full screen' as the instructor fits a lot of information on a dark screen.
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Pre-Calculus: Complex Numbers - Trig or Polar Form
This video lesson instructs one on how to convert complex numbers into trig form (also known as polar form) and is a production of MindBites.
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PreCalculus - Functions
For each choice of independent variable x, there is one and only one corresponding value of dependent variable y. This is a very brief overview. (01:17)
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Solving Rational Equations - Yay Math
Many examples of manipulating fractions that include variables in order to solve equations. White board in a class setting, some interaction, engaging, several examples of increasing complexity. The discussion is clear and understandable. Preview - full version at http://video.google.com/videoplay?docid=-1558392479512220339&q=source:012956945238798337823&hl=en Produced by Robert Ahdoot, yaymath.org
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