SciShow
Why Are Periodical Cicadas So ... Periodical?
Certain cicada species in North America emerge from the ground by the millions every 13 or 17 years. But why those specific intervals? Are cicadas secretly prime-number-loving mathematicians?!
PBS
Are Prime Numbers Made Up?
Is math real or simply something made up by mathematicians? You can't physically touch a number yet using numbers we're able to build skyscrapers and launch rockets into space. Mathematician Kelsey Houston-Edwards explains this...
3Blue1Brown
Why do prime numbers make these spirals?
A curious pattern in polar plots with prime numbers, together with discussion of Dirichlet's theorem
TED-Ed
TED-ED: The Infinite Hotel Paradox - Jeff Dekofsky
The Infinite Hotel, a thought experiment created by German mathematician David Hilbert, is a hotel with an infinite number of rooms. Easy to comprehend, right? Wrong. What if it's completely booked but one person wants to check in? What...
TED-Ed
TED-Ed: Can you solve the feeding frenzy riddle? | Henri Picciotto
As Numberland's best detective, you thought you'd seen it all. But the desiccated corpses of prominent natural numbers have been showing up all over the city. A lockdown is ordered from sundown to sunrise, and it's still not enough to...
TED Talks
TED: Why I fell in love with monster prime numbers | Adam Spencer
They're millions of digits long, and it takes an army of mathematicians and machines to hunt them down -- what's not to love about monster primes? Adam Spencer, comedian and lifelong math geek, shares his passion for these odd numbers,...
Curated Video
Solve problems with 4-digit dividends using factors and long division
Pupil outcome: I can solve problems with 4-digit dividends using factors and long division. Key learning points: - Factors of a divisor can be used to divide a dividend. - Listing multiples of the divisor improves efficiency and accuracy...
Curated Video
Explain how to identify a prime number or a composite number
Pupil outcome: I can explain how to identify a prime number or a composite number. Key learning points: - A prime number has only 2 factors, 1 and itself. - A composite number is a number with more than 2 factors.
Curated Video
Checking and further securing understanding of the commutative law
Pupil outcome: I can state the commutative law and use it to calculate efficiently. Key learning points: - A number can be expressed as the product of prime factors. - By using the commutative law, you can chose which factors to multiply...
Curated Video
Making conjectures about patterns and relationships
Pupil outcome: I can make and test conjectures about the generalisations that underline patterns and relationships. Key learning points: - A conjecture can be made about underlying patterns. - The conjecture can be tested to see if it...
Curated Video
The Prime Number Code
Why prime numbers are the building blocks of encryption, used for information security, in cash machines and to hide your identity online. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum....
Curated Video
Primed for Survival
Why do Periodica Cicada only emerge en masse during prime-numbered years? Mathematicians believe it gives the species the best chance of protecting its breed. Maths - Number A Twig Curriculum Film. Delivering key learning points. Get...
Curated Video
Mastering LCM: Unveiling the Magic of Factor Trees and Prime Factorization
In this educational video, we dive into the fascinating world of factor trees and prime factorization to solve a common mathematical problem: finding the least common multiple (LCM) of multiple numbers. Join me as we tackle the LCM of 2,...
Curated Video
Are You Stumped by LCM? Find Out How To Ace This Ladder Method Puzzle!
Welcome to Math Defined with Mrs. C, where I simplify math concepts for you! In this video, I will guide you through the ladder method to find the Least Common Multiple (LCM) of a set of numbers. Specifically, I'll tackle the numbers 2,...
Curated Video
Prime Numbers Explained
This video explains what prime numbers are and how to find out if a number is a prime or non-prime (composite number). Practice questions and answers are at the end of the video.
Curated Video
Finding the Prime Factors of a Number
This video explains how to find the prime factors of a number using the factor tree method, as well as how to write prime factors in index form. Practice questions and answers are at the end of the video.
Curated Video
What are Prime Numbers?
This video explains what prime numbers are and answers the question, "Is 1 a prime number?" In addition to the definition and explanation of what prime numbers are, I have included a practice problems as well.
Curated Video
Mastering Prime Factorization and Factor Trees
This video explains the concept of prime factorization and demonstrates how to find the prime factorization of composite numbers using factor trees. Through examples and a step-by-step guide, viewers learn how to identify prime factors...
Curated Video
Introduction to Prime Numbers: Exploring Primes Up to 10
In this video, the concept of prime numbers is explained clearly and concisely up to the number 10. Viewers are guided through identifying prime numbers by demonstrating which numbers can only be divided by one and themselves.
Curated Video
Mastering Prime Factorization: The Ladder Method Explained
This video explains prime factorization using the ladder method, breaking down composite numbers into their prime factors. It emphasizes the difference between prime and composite numbers, showcasing examples and non-examples to...
Curated Video
What are Prime Numbers and Composite Numbers? #4
This video covers what prime and composite numbers are, and how we can tell whether a particular number is prime or composite. Key points: - Prime numbers are only divisible by themselves and 1. - Composite numbers are any number that...
Curated Video
How to Use Prime Factor Trees to find Prime Factors #5
This video covers how to find the prime factors of a number by using a prime factor tree. This process is sometimes called prime factorisation. Suitable for courses across the world, including all KS3 and GCSE courses in the UK.
Curated Video
GCSE Maths - How to Disprove a Statement by Counter Example - Proof Part 1 #62
This video covers how to disprove a statement by providing a counter-example i.e. an example that shows that the statement is wrong. This is part 1 of our 2 part series on proofs. 1) How to Disprove a Statement by Counter Example - (this...
Curated Video
Prime vs. Composite Numbers
Mr. Addit explains the differences between prime and composite numbers.