Brave Wilderness
Incredible Leaf Mantis!
On this episode of Breaking Trail, Coyote finds a Leaf Mantis in the rainforests of Costa Rica! There are over 2400 species of Mantis in the world but the Leaf Mantis is truly unique with its nearly flawless leaf-like camouflage. Also...
KnowMo
Adding and Subtracting Standard Form: A Non-Calculator Method
This video provides a step-by-step guide on how to add and subtract numbers in standard form, with and without the use of a calculator. The presenter explains the three steps involved in adding and subtracting numbers in standard form,...
SciShow Kids
Camouflage: Animal Hide & Seek
A SciShow kid wrote us and asked: What is camouflage and how does it work? Join Jessi as she explores how different kinds of animals play hide-and-seek in the wild!
Weird History
How a Soviet Soldier Saved the World From Annihilation
You many not be familiar with the name Vasili Arkhipov, but maybe you should be. He's the Soviet Navy man who stopped nuclear war during the Cuban Missile Crisis in the '60s. Arkhipov, AKA the man who avoided nuclear war, somehow...
Curated Video
Solving Ratio Problems with Double Number Lines
This video explains how to solve ratio problems by setting up a double number line. It emphasizes the importance of correctly setting up the number lines and provides examples to illustrate the process. The video also introduces the...
The Wall Street Journal
The Road Ahead for Ride-Hailing Apps
Lyft Co-founder and President John Zimmer talks about the future of mobility and how the ride-sharing company is responding to a cooling economy.
Curated Video
Multiplying Three-Digit Numbers by Two-Digit Numbers with Regrouping
Mr. Addit reviews multiplying 2-digits by 2-digits with regrouping. He then demonstrates the method for multiplying 3-digits by 2-digits with regrouping and stresses the importance of being careful about putting numbers in their proper...
Curated Video
Multiplication and Repeated Addition
The relationship between multiplication and repeated addition.
Curated Video
Adding 2-3 Digit Numbers Using Base 10 Blocks
The lesson starts with understanding the place value of each digit in a number, followed by using base 10 blocks to visually represent the numbers being added. Students are then guided through the process of counting up each column to...
Curated Video
Word Problems: Addition and Subtraction
This video shows the process for solving the problem presented in SATs 2022 Paper 3 Q7, which involves a word problem that requires addition and subtraction. Students will understand how to read a word problem to ascertain the math...
Curated Video
The 3 and 4 Times Tables
Mr. Addit teaches the student the multiplication facts of 3 and 4.
SciShow
Space Hype!
Sometimes science news is less about stuff that actually happened, as much as it is about people going "PAY ATTENTION TO ME" and space news is no exception. In fact this week there was probably as much hype as real news, all in the name...
TED Talks
TED: What separates us from chimpanzees? | Jane Goodall
Jane Goodall hasn't found the missing link, but she's come closer than nearly anyone else. The primatologist says the only real difference between humans and chimps is our sophisticated language. She urges us to start using it to change...
Curated Video
Regrouping and Carrying
Mr. Addit reviews the terms regrouping and carrying. He then shows examples of adding two two-digit numbers and two three-digit numbers to give examples of regrouping and carrying.
Curated Video
Understanding Place Value: Adding and Subtracting 100
This video teaches learners how to add 100 more or 100 less to any 3-digit number.
Curated Video
Mastering 10 More and 10 Less: A Place Value Math Lesson
This video teaches learners how to add 10 more or 10 less to any 3-digit number.
Crash Course
Community Ecology II: Predators - Crash Course Ecology
Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.
Curated Video
Regrouping and Carrying
The video “Regrouping and Carrying” explains how to use regrouping and carrying as part of the standard algorithm for adding two- and three-digit numbers.
Curated Video
Review for You: Regrouping
Mr. Addit reviews the method of using regrouping and carrying to add 2, 2-digit numbers and 2, 3-digit numbers. He reviews the method of regrouping and borrowing to subtract 2, 2-digit numbers and 2, 3-digit numbers.
Brian McLogan
Learn how to write an algebraic proof
👉 Learn how to write an algebraic proof. Algebraic proofs are used to help students understand how to write formal proofs where we have a statement and a reason. In the case of an algebraic proof the statement will be the operations used...
Curated Video
Adding Multi-Digit Whole Numbers
This video shows the process for answering questions on the SATs exam and is aimed at primary/elementary-level students. It also shows the process for solving the problem presented in SATs 2022 Paper 1 Q1, which involves adding three...
Curated Video
School Theater (Use multiplication to solve word problems using arrays and a symbol for the unknown.)
A school theater has seats arranged in 7 rows and each row has 9 seats. What is the number of seats in the theater?