Curated OER
Complex Numbers (Part 1)
In this video, a complex number is defined and graphed on the complex plane. Sal also shows how to add, subtract, and multiply two complex numbers. He starts showing how to divide two complex numbers, but runs out of time and continues...
Curated OER
Basic Rate Problem
A simple rate problem is looked at in this video. The listener needs to compute whether four trains each going different distances over different amounts of time are moving at the same constant rate. This problem reinforces ones basic...
Curated OER
Area of Diagonal Generated Triangles of Rectangle are Equal
Finding the area of each of the triangles that are created by drawing two diagonal lines through a rectangle is explored in this lecture. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use...
Curated OER
Another Percent Word Problem
Guavas are on sale in this video. Here two examples are shown to calculate a discounted rate.
Curated OER
Angles of Parallel Lines 2
Providing an exploration of parallel lines, this resource requires students to not only practice calculations, but also to analyze angles. By asking viewers to decide whether two lines are parallel based upon the information given, this...
Curated OER
Angles Formed Between Transversals and Parallel Lines
While exploring the concept of transversals, Sal discusses corresponding angles, congruent angles, and opposite/vertical angles. He provides a thorough summation of these mathematical concepts. It is the first installment in a series...
Curated OER
Introduction to I and Imaginary numbers
Students are always fascinated by imaginary numbers. In this video, Sal defines the imaginary unit, i, and shows when raising i to an exponent it has a cyclic nature.
Curated OER
More Involved Radical Equations
Sal is not kidding when he calls this radical expression "hairy" and "more involved." Though viewers might be daunted by the amount of work necessary in solving the problem, Sal is confident and collected throughout the video. It's...
TED-Ed
How to Sequence the Human Genome
Every human is unique, from our thoughts and actions to our DNA. Scientists spent billions of dollars and over a decade to map the human genome, the sequence of DNA within one human being. Since the project was completed ten years ago,...
TED-Ed
Vampires: Folklore, Fantasy and Fact
Who would've thought that a video on vampire imagery could also be such a fantastic resource on cultural folklore, European history, and human anatomy? This video illustrates how the vampire image has evolved throughout history across...
Nemours KidsHealth
How the Body Works—Eyes
You might find this video a little silly-ary (ciliary, as in, ciliary muscle). Giant, hat-wearing eyeballs with legs walk around as Chloe and the Nurb discuss different features of this light-collecting organ. Get your class focusing on...
Nemours KidsHealth
How the Body Works—Tongue
Nurb is selling tongues. He pitches his product by showing all of the amazing tasks it can perform. Cute cartoon characters, colorful animation, and preteen-appealing humor make this clip a "terrific tool for tasteful teaching." (How's...
Nemours KidsHealth
How the Body Works—Nose
The nose knows, and your class will know about the nose after experiencing this lesson. Nurb takes the viewer on a virtual tour of the nose, explaining its functions from smell to first-line immunity. Chloe and Nurb get sneezed out of...
Nemours KidsHealth
How the Body Works—Teeth
In the setting of a variety show, Nurb sings onstage about human teeth. He goes through the progression of how they grow, when they are lost, and when wisdom teeth come in. He chirps about the different types of teeth and what roles they...
Nemours KidsHealth
How the Body Works—Hair
Standing in a forest of hair, Chloe and Nurb discuss how hair grows, why it doesn't hurt to cut it, why it shines, and more! Pair this with the skin video for full coverage of external features of the human body!
Nemours KidsHealth
How the Body Works—Skin
Take an elevator down under the surface of the skin! Animations show that new skin cells are formed and the old ones are shed in the epidermis, how melanin provides color and nerves and blood vessels reside in the dermis, and what the...
TED-Ed
The Deadly Irony of Gunpowder
Gunpowder has played a key role in shaping civilization as we know it today. Trace its evolution from its beginnings in the mid-ninth century when early Chinese alchemists worked to create a potion for immortality, through its use in...
TED-Ed
What's Wrong with Our Food System
11-year-old Birke Baehr describes what he calls "the dark side of the industrialized food system". Explaining everything from genetically engineered seeds and organisms to Confined Animal Feeding Operations (CAFOs), Baehr encourages his...
TED-Ed
Our Loss of Wisdom
"A wise person knows when and how to: make the exception to every rule, improvise, and use these moral skills in pursuit of the right aims. A wise person is made and not born." Impress upon your learners the importance of leading lives...
TED-Ed
Your Body Language Shapes Who You Are
Can changing your postures significantly alter the evolution of your life? Give your learners a valuable tool to face their next stressful evaluative situation, whether it be the lunchroom table or an important job interview. Social...
TED-Ed
Pros and Cons of Public Opinion Polls
How accurately do public opinion polls reflect the views of their participants? We often take for granted the results of such polls, but this resource will encourage your class to look at results with greater discretion. Instruction...
TED-Ed
Rethinking Thinking
As humans, we are constantly making inferences and developing beliefs about the world around us. Using the image of a ladder embedded in our subconscious, take a detailed look into how, rung by rung, we process our interactions with...
Curated OER
What Makes a Hero?
Viewers will love this engaging video, which is an adventure of its own! The narrator begins by relating the hero's journey to modern books, and then introduces Joseph Campbell and his thoughts about the process. As the narrator details...
TED-Ed
Kabuki: The People's Dramatic Art
Discover the kabuki form of Japanese classical theater performance and its reflection of the historical evolution of Japanese government and culture. As the first dramatic performance form catering to the common people, kabuki is shaped...