In this video adapted from NOVA scienceNOW, learn how the common wood frog survives the cold winter. Wood frogs are found in the northern United States and Canada and must endure freezing cold temperatures for parts of the year. In order to survive the cold, they have a special adaptation—they are able to freeze solid without damaging their cells. Sugar acts like a natural antifreeze in their bodies, allowing them to spend the winter frozen and then resume function in the spring. Run time 03:3
How is sound created, and how do animals hear? This video segment explores the nighttime worlds of the desert fox and the barn owl, whose heightened sense of hearing allows them to travel and find food while most other animals lie low and wait for daylight. Footage from NOVA: "Mystery of the Senses: Hearing." Closed captioning included. Run time 01:40.
If you've ever stumbled through the woods on a moonless night, you may have wondered how nocturnal creatures move about with such apparent ease. This interactive feature from NOVA "Leopards of the Night" Web site explores some of the most important adaptations of the nocturnal eye and highlights the nighttime habits of a range of creatures that rely on these adaptations. This is an interactive site that includes pictures and descriptions of various nocturnal animals.
In this video from the WPSU’s series Outside, a staff member from Shaver’s Creek Environmental Center at Penn State University explains how some species of turtle protect themselves in their environment. Turtles, like many other species, are facing obstacles that threaten their survival. Some of these obstacles have threatened turtle survival for centuries, while others have emerged more recently and are caused by human activities. Closed captioning included. Run time 02:32.
Camel Adaptation Rap Song w/LYRICS
This music video describes the specific adaptations that a camel has to survive in the arid desert. The song moves quickly. Lyrics are provided at the bottom of the screen. Cartoon animation. Run time 03:20.
SAT Prep: Test 2, Section 3, Part 3
Students, improve your math SAT score! The instructor uses an electronic chalkboard to model problems. This video is appropriate for high school students. Uses a textbook (the official SAT study guide) commonly found in bookstores, but it is not absolutely necessary as the narrator does all work on the screen.
Elizabeth I - Documentary Part 1
This first part of the documantary begins with a account of her parents, Henry VIII and Anne Boleyn. After her mother's death she was declared illegitimate child. There is reference to the break with Rome and the church reformation. There are images of the monasteries in ruins. There is also reference to Elizabeth's childhood.
Ways to help your school decrease school violence.
Harlem in Montmartre: Notes on the French Contribution to Jazz
Charles Hobson, producer of the PBS Great Performances program Harlem in Montmartre, brings to The New School the story of the jazz age in Paris between the First and Second World Wars, a fascinating but neglected piece of African American history. Inspired by William A. Shacks book of the same title, his documentary contains rare archival performance footage of James Europe, Josephine Baker, Sidney Bechet, Bricktop, Eugene Bullard, Django Reinhardt, and many more. Using photographs and film cli
The Passive Voice Get = Be
This lecture is an explanation of the idea of passive voice and how get can be used in place of be. A variety of examples help to illustrate the concepts in the lesson. The teacher also addresses how questions are different in passive voice.
The Litte Princess Book Review
This is book review of The Little Princess by Frances Hodgson Burnett. The video is little choppy at times.
Basic Algebra : How to Teach the Multiplication of Signed Numbers
Multiplication of signed numbers in mathematics is taught by explaining that a positive number multiplied by itself equals a positive number. Learn ways to explain how to multiply a negative number and a positive number with help from a math teacher in this video on mathematics.
Expert: Jimmy Chang
Bio: Jimmy Chang has been a math teacher at St. Pete College for nearly a decade. He has a master's degree in math, and his specialties include calculus, algebra, liberal arts, mat
Solving Rational Equations, Part 2 of 3
The instructor in this video (04:08) discusses how to solve rational equations using another problem. Sl Khan shows how to multiply to remove the fractions to make solving easier. He uses computer software for demonstration. The viewer may want to open the video to 'full screen' because the instructor has a lot of small writing on a black screen.
Solving Rational Equations with Unlike Denominators
This video clip explains how to solve rational equations with unlike denominators. The first step is to factor the denominators and look for a common denominator. Next, we multiply both sides of the equation by the common denominator to clear the fractions. Finally, we solve for the variable using an appropriate technique. (1:35)
Proportions and Similar Figures
Can you use the lengths of the sides of one figure to discover a missing length for a similar figure? Watch this video and find out. This video by Duane Habecker is part of the video collection at NextVista.org (http://nextvista.org), a proud partner of Curriki.
Similar Triangles, Part 2 - Khan Academy
Video uses an electronic black board with different-colored pens. In this video. Mr. Khan discusses the measurement of alternate interior angles, corresponding angles and how they are similar. Triangles are drawn in two parallel lines and a transversal. Narrator shows how to figure out the length of the sides of the angles when three sides are known. Good quality video. Good for middle elementary and middle school students.
Introduction to similar triangles. The instructor uses his computer (appears to be the Paint program) to communicate with the viewer. He uses different colors to aid in comprehension. For middle school students and older.
This video explains how isosceles triangles have at least two congruent sides and at least two congruent angles. The congruent sides, called legs, form the vertex angle. The other two congruent angles are the base angles. Isosceles triangles are used in the regular polygon area formula and isosceles right triangles are known as 45-45-90 triangles. (1:24)
Isosceles Triangle Properties
In isosceles (and equilateral) triangles, a segment drawn from the vertex angle to the opposite side is the altitude, angle bisector and median. This video explains how isosceles triangle properties are used in many proofs and problems where the student must realize that, for example, an altitude is also a median or an angle bisector to find a missing side or angle. (1:03)
In this short video, the instructor defines and shows an example of an equilateral triangle. This lesson is very brief.