Curated Video
Explain that the digits in the numbers 11 to 19 express position on a number line
Pupil outcome: I can explain that the digits in the numbers 11 to 19 express position on a number line. Key learning points: - The numbers 11 - 19 can be positioned on a number line. - Saying the teen numbers as one ten and __ ones helps...
Mr. R.'s Songs for Teaching
Double Number Song (adding double numbers 1-10)
I wrote this one for my early elementary classes- it teaches and reviews the addition of double numbers 1-10 (lyrics below) Purchase the song on iTunes: http://goo.gl/0OemQ7 Watch my new double number song: https://youtu.be/e-KTHfrFit0...
Curated Video
Adding Rational Numbers Using Rules
In this video, we explore the exciting world of rational numbers and learn how to add them using integer rules. Perfect for 7th graders and anyone looking to strengthen their math skills, this tutorial breaks down the process with clear...
Brian McLogan
Factoring a basic trinomial using the x method, x^2 + 8x - 9
👉Learn how to factor quadratics. A quadratic is an algebraic expression having two as the highest power of its variable(s). To factor an algebraic expression means to break it up into expressions that can be multiplied together to get...
Curated Video
Using Standard Form in Biology: Converting Large and Small Numbers for Easier Calculations
This video is a lecture presentation on the use of standard form in biology. The presenter explains how to express very large and very small numbers in standard form using decimal numbers and powers of 10. The presenter also gives...
Brian McLogan
Algebra 2 - Learn how to multiply two complex numbers and write in standard form
In this video playlist you will learn how to simplify complex numbers under a radical as well as raised to a higher power. You will learn to add, subtract, multiply and divide complex numbers to write in simplified standard form. When...
Brian McLogan
Learn How to Factor a Trinomial in Your Head When a is not Equal to One
👉Learn how to factor quadratics when the coefficient of the term with a squared variable is not 1. To factor an algebraic expression means to break it up into expressions that can be multiplied together to get the original expression. To...
Curated Video
Add and subtract 1 to and from a 2-digit number crossing the tens boundary
Pupil outcome: I can add and subtract one to and from a two-digit number crossing the tens boundary. Key learning points: - Finding one more is the same as adding one; finding one less is the same as subtracting one. - Numbers that are...
Curated Video
Explain where 6, 7, 8 and 9 lie on a number line
Pupil outcome: I can explain how 6, 7, 8 and 9 lie between 5 and 10 on a number line. Key learning points: - One more and one less can be used to order numbers 0 to 10 - A number line shows the position of numbers 0 to 10 - On a 0 to 10...
TED-Ed
TED-Ed: A brief history of numerical systems - Alessandra King
1, 2, 3, 4, 5, 6, 7, 8, 9 and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of them? And why do we arrange them the way we do? Alessandra King gives a brief history...
Curated Video
Finding 10 to Add and Subtract Quickly
In this video, students learn to anchor problems to number ten, a common way to problem solve. For example, the problem 9+3 might be unfamiliar, but if we split number 3 into 1+2, we can create a ten. We are left with 9+1+2, or 10+2....
Curated Video
How to Add and Subtract Fractions #11
In this video we cover how to add and subtract fractions, by first finding a common denominator, and then adding or subtracting the numerators. KS3 - All on your course GCSE Foundation - All on your course GCSE Higher - All on your course
Brian McLogan
Finding the zeros by completing the square when you have a fraction
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
Multiplying in scientific notation with negative exponents
👉 Learn how to multiply numbers written in scientific notations. Scientific notation is a convenient way of writing very large or very small numbers. A number written in scientific notation is of the form a * 10^n where a is the first...
Why U
Algebra 37 - Solving Systems of Equations by Elimination
Systems of two equations in x and y can be solved by adding the equations to create a new equation with one variable eliminated. This new equation can then be solved to find the value of the remaining variable. That value is then...
Curated Video
KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Number Sequences - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Brian McLogan
How to divide two rational expression by using the division property
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the...
Curated Video
This Problem Stumped Vietnamese Students - Solution To Viral Puzzler
This problem was asked to 3rd graders (8 year olds) in Vietnam. Can you figure it out? Place the numbers 1 to 9, using each number once, to make a valid equation. In this video I explain how you can solve this problem logically. UPDATE:...
Brian McLogan
Master Evaluating Simple Logarithmic Expressions
Welcome, ladies and gentlemen. So what I'd like to do is show you how to evaluate a logarithm without a calculator. Now, what I'm going to do for this video is do some logarithms that are pretty simple. And I think as long as you...
Curated Video
Subtracting Integers with Grade 7 Using The Number System
Welcome back to Math Defined! In this video, we're diving into the essential math skill of subtracting integers. Whether integers have the same or different signs, I'll show you simple steps to solve these problems quickly and easily....
Curated Video
Creating Perfect Square Trinomials by Completing the Square
This video provides examples and step-by-step instructions on finding the values that allow an expression to be factored into a perfect square. The teacher also emphasizes the importance of being careful with negative values to avoid...
Curated Video
How To Read Roman Numerals
In this video, you'll learn all about the fascinating world of Roman numerals. With clear and concise explanations and examples, you'll gain a deep understanding of how to read and write Roman numerals. Practice questions and answers are...
Curated Video
Can You Solve The Diluted Wine Puzzle?
A servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted...