3Blue1Brown
Linear transformations and matrices | Essence of linear algebra, chapter 3
When you think of matrices as transforming space, rather than as grids of numbers, so much of linear algebra starts to make sense.
SciShow
How the Internet Was Invented | The History of the Internet, Part 1
The Internet is older than you might think!
3Blue1Brown
The determinant | Essence of linear algebra, chapter 6
The determinant has a very natural visual intuition, even though it's formula can make it seem more complicated than it really is.
3Blue1Brown
Why slicing a cone gives an ellipse
A beautiful proof of why slicing a cone gives an ellipse.
3Blue1Brown
How pi was almost 6.283185...
A bit of the history behind how we came to use the symbol "pi" to represent what it does today, and how Euler used it to refer to several different circle constants.
3Blue1Brown
Tattoos on Math
After a friend of mine got a tattoo with a representation of the cosecant function, it got me thinking about how there's another sense in which this function is a tattoo on math, so to speak.
Curated Video
Data
A collection of pieces of information, organised and categorised for some purpose. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Oscillate
To vary from one extreme to another, generally with a regular interval. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Kilohertz
A unit for measuring frequency, equal to one thousand hertz or cycles per second. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
The Equations and Inequalities: The Operation on the Inequalities
By the end of this learning object, the student will be able to: Summarize the lesson & understand how to solve any inequality.86708
Curated Video
The Equations and Inequalities: The First Property of the Inequality Relation in N and Z
By the end of this video, the student will be able to: Recognize the first property of the inequality relation in N and Z.9492
Curated Video
The Equations and Inequalities: The Properties of the Equality Relation in N and Z
By the end of this learning object, the student will be able to: Recognize the properties of the equality relation in N and Z.9486
Curated Video
The Equations and Inequalities: Solving the First Degree Equation in One Unknown
By the end of this learning object, the student will be able to: Summarize & review the important points in the lesson.86707
Curated Video
Bills and Coins
Mr. Addit explains the value of $10, $5, and $1 bills. He explains that we count bills by the largest value first, the same way we count coins.
Curated Video
Place Value: Ones, Tens, and Hundreds
Mr. Addit provides an overview of base ten blocks. He relates counting with base ten blocks to using the place value chart.
Curated Video
The Right Place
Mr. Addit teaches about place value through the millions by introducing the idea of the base 10 system and using base 10 blocks.
Curated Video
Guess Who I Am
Miss Palomine hosts a game show called Guess Who I Am. The student is challenged to answer questions about the penny, the nickel, the dime, and the quarter.
Curated Video
The Number 14
Miss Palomine is about to drive the swimming team to the pool for practice when she remembers there are fourteen kids on the swimming team. She shows the number 14 card, finds fourteen on the number line, and practices counting with the...
Curated Video
Nineteen and Twenty
We find Miss Palomine at an amusement park. She talks about how she and her friend April are each in a line of ten. All together, there are twenty people in line. When one leaves, there are now nineteen people. This begins a discussion...
Curated Video
Introducing Number Ten
Miss Palomine explains that there are no more Number Friends to use to introduce the number ten. She suggests putting Olivia One in front of Zoe Zero to make the number ten. She and the student then identify the number “10” and the word...
Curated Video
Let’s Talk about Eighteen
We find Miss Palomine at an amusement park. She talks about how she sat in a set of three rows of six seats. She counts the seats and finds there are 18 seats. This begins a discussion of the number 18. She shows the number 18 card,...
Curated Video
Two Pennies, a Nickel, and a Dime
Miss Palomine adds one more penny to the sixteen cents she found in the parking lot. This begins a discussion of the number 17. She shows the number 17 card, finds seventeen on the number line, and then practices counting with the student.
Curated Video
A Penny, a Nickel, and a Dime
Miss Palomine shows the sixteen cents she found in the parking lot. This begins a discussion of the number 16. She shows the number 16 card, finds sixteen on the number line, and then practices counting with the student.