Curated OER
Recognizing Divisibility
The divisibility rules are invaluable tools to possess. Sal teaches students to recognize divisibility using the divisibility rules. He explains why 380 is divisible by some numbers and not by others. Tip: Create a handout on the...
Curated OER
Scientific Notation 1
Scientific notation is defined and used to express the number 0.0000000003457. This concept is not as clearly defined as it could be, and is probably not suitable for those who have not had prior experience with the concept.
Curated OER
Vi and Sal Talk About the Mysteries of Benford's Law
Challenge your students to come up with their own explanation of why this interesting mathematical law works! Sal, accompanied by Vi Hart, demonstrates BenfordÕs Law. They challenge the listeners to see if they can give an intuitive...
Mathispower4u
Divide a Polynomial by a Binomial Using Long Division (Example 2)
Go ahead and divide as if nothing is missing. The video shows the long division process using a cubic polynomial with no missing terms being divided by a linear binomial. Pupils see how to write the remainder within the quotient.
Curated OER
How Do You Compare Two Whole Numbers?
Two very similar numbers and you have to figure out which one is larger. The teacher diagrams a place value chart and shows you how to write the two numbers to make a comparison.
Curated OER
How Do You Compare Two Whole Numbers?
Two very similar numbers and you have to figure out which one is larger. The teacher diagrams a place value chart and shows you how to write the two numbers to make a comparison.
Educreations
Dividing Using Friendly Numbers
Simplify division for young mathematicians by teaching them how to use friendly numbers when finding quotients. Three examples are presented in this instructional video that models the process of breaking large dividends into sums of...
Numberphile
Pi
Behind every number is a good story. Scholars learn how Archimedes tried to estimate the value of pi through inscribed and circumscribed figures. Viewers also see how they can use infinite series to find the value of pi by watching a...
Curated OER
How Do You Solve a Decimal Inequality Using Subtraction?
Isolate the variable to solve any equation. This equation happens to be an inequality but is solved no different than if it were just an equation. Use the subtraction property of inequality to solve this given problem. The numbers are...
PBS
When Pi is Not 3.14
Isn't pi supposed to be constant? An intriguing video shows how the value of pi can change when the definition of distance varies. It explains how using various L^p metrics, where p = 2 represents the traditional Euclidean metric,...
PBS
Can We Hear Shapes?
What do shapes sound like? Scholars learn about the frequencies of pure tones created by vibrations of shapes. The video first considers the case of string, then moves on to two dimensions. It touches upon Fourier series and a question...
PBS
Can You Solve the Poison Wine Challenge?
A video posits the question of how to identify the one poisoned bottle of wine from 1,000 bottles by getting 10 rats to drink the wine. Hint: Binary numbers become very useful in this situation.
PBS
A Hierarchy of Infinities
What's larger than infinity? Infinity plus one! Scholars learn about the different levels of infinity in the video that uses bijections as a way to show infinite sets as being the same size. They also and see that the set of real...
PBS
How Many Humans Have the Same Number of Body Hairs?
Is there a person on Earth who has the same exact number of body hairs as you? The video describes a process using the Pigeonhole Principle to prove that this is definitely possible. The film goes on to consider other examples and...
PBS
A Breakthrough in Higher Dimensional Spheres
How would you stack oranges in eight dimensions? The interesting video first describes hyperspheres as spheres in higher dimensions. It then provides some thought experiments to provide ways to think about hyperspheres and sphere packing.
TED-Ed
The Mathematics of History
Is there a relationship between mathematics and history? In this video, Jean-Baptiste Michel explains how our technological advancements will afford many opportunities for mathematics to play an integral role in revealing key trends in...
Krista King Math
How to Write Small and Big Numbers in Scientific Notation
Now you don't have to write all those zeros. Viewers of this video learn how to write large and small numbers in scientific notation. The video covers two examples for each type.
Curated OER
How Do You Find a Missing Angle in a Triangle?
The interior angles of any and ALL triangles adds up to 180 degrees. So if given two of the angle degrees, is it possible to find the value of the third angle? Yes! Use the triangle sum theorem to solve for the missing angle. Watch this...
Crash Course
The Gravity of the Situation
Gravity impacts the way you throw a ball and the way the Haumea travels around the sun. The video introduces gravity as a force. It describes the various types of orbits, escape velocity, and weightless mass.
Crash Course
The Moon
A large amount of ice exists on the moon making colonization that much easier. The video discusses the creation of the moon and the materials and features on it. It also discusses the reasoning behind our moon being just one of many and...
PBS
Why the Big Bang Definitely Happened
According to Space Time, many different studies prove the Big Bang happened. Part of a larger Cosmology playlist, it discusses the common arguments against and the newest science supporting the theory.
Socratica
Chemistry: Introduction to Unit Conversion and Dimensional Analysis (Part 2)
If you know how much carbon dioxide you produce in one breath, can you figure out how much you produce in one month? Socratica helps solve multi-step unit conversion problems. The video walks through how to set up these challenges and...
Socratica
Chemistry: Percent Composition
How much oxygen is in water? Is it the same as the chemical formula? Learners observe the differences between a substance's formula and its percent composition with a video from Socratica's Chemistry Lessons series. The narrator...
Be Smart
Does The Moon Really Orbit The Earth?
What do Newton's Law of Gravitation and the moon's orbit have in common? Assist pupils as they view a short video segment and learn the gravitational methods of the moon and earth. They learn the reason why and how these have changed...
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