Corbett Maths
Simplifying Ratio
Ratios with smaller numbers are so much easier to manipulate. A short video describes how to simplify ratios by comparing the process to simplifying fractions. It works through a real-world example that requires writing and simplifying a...
Khan Academy
MTEL Math Practice Test: 5-8
In this video, covering questions 5-8, Sal demonstrates test-taking skills (reading a question properly, analyzing all possible choices) and pre-algebra-level skills. He guides viewers through problems involving simplifying expressions,...
Khan Academy
MTEL Math Practice Test: 9-11
This MTEL practice video focuses on problems 9-11, which include skill sets such as reading number lines and inequalities. Sal guides viewers through reading the question and working the equations with simple narration and colorful...
Khan Academy
MTEL Math Practice Test: 20-23
This video, helpful for even the most seasoned math teacher, demonstrates not only mathematical skills and equations but also the test-taking strategies necessary to choose the correct answer. On question 22, Sal explores an alternate...
Curated OER
How Do You Figure Out Sales Tax?
Sales tax always increases the price of your purchases. How can you figure out how much you'll be paying in full? Teach your class how to figure out their total cost, including sales tax, with this video. Using an example of a pair of...
Curated OER
How Do You Simplify an Algebraic Fraction by Canceling Common Factors?
Use prime factorization to simplify this algebraic fraction. When the factorization is done then cancel out all values in which a value from the numerator and a value from the denominator equal 1. And what is left over is then the...
Curated OER
What's the Order of Operations?
Expressions and equations must be worked out in a specific order or the solution will be incorrect. This order of operations has been referred to in several ways, some have called it PEMDAS. Others refer to the order as: group, powers,...
Curated OER
How Do You Solve an Equation With Fractions With Different Denominators Using Addition?
Find the value of a variable in an equation that has fractions with unlike denominators. Use the addition property of equality first to isolate the variable. Then find the LCD and do the math to make the denominators the same. Now they...
Curated OER
How Do You Find the Cube Root of a Perfect Cube?
Introduce your class to cube roots! You can show them this video, in which an instructor demonstrates how to find the cube root of a perfect cube. While this video is clear and well-made, it is appropriate only for more advanced learners...
Curated OER
How Do You Solve a Word Problem Using Two Equations?
Two equations and two unknown variables in a word problem. Don't cry! Follow the instructor through these nine steps to find the solutions. Identify the variables, write the equations, solve for one of the variables, use the substitution...
Curated OER
How Do You Multiply Two Rational Expressions?
Before doing any kind of multiplication, first see if the terms can be reduced. Otherwise the values after multiplying can be very large and would need to be reduced anyway to simplest terms. So check out how to factor the given rational...
Curated OER
How Do You Multiply Quotients of Monomials by Canceling Factors?
Multiply algebraic fractions. But first cancel or reduce the numerators and denominators, then do the multiplying. Cancel out the common factors in these monomials. It is always a good idea to reduce as much as possible before...
Curated OER
How Do You Multiply a Monomial by a Polynomial?
The instructor gives an example of how to multiply a monomial times a trinomial. She explains verbally what she is doing but does not write each multiplication step on the board.
Curated OER
How Do You Find the Volume of a Box Whose Sides are Monomials?
Length times width times height. Yes, the formula for the volume of a rectangular shape. But the values are monomials. Use the knowledge you have to multiply the monomials and then write it in simplest form.
Curated OER
How Do You Find the Product of Powers?
Practice using the product of powers rule to simplify an expression. Remember that only like-bases can be put together. Use the commutative property of multiplication to rearrange the terms and then use the formula to combine terms. Now...
Curated OER
How Do You Use the Order of Operations?
It is imperative that all your mathematicians know and understand the order of operations. This one skill can make or break young math learners. If they don't understand the order, many wrong answers will be gotten. So take the time to...
Curated OER
What is the Distributive Property?
An informative video on the distributive property, this resource could be used to help promote understanding of the concept. The instructor defines the distributive property and demonstrates how it works with variables. Show this video...
Curated OER
What is the Quadratic Formula?
What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...
Curated OER
What is the Distributive Property?
An informative video on the distributive property, this resource could be used to help promote understanding of the concept. The instructor defines the distributive property and demonstrates how it works with variables. Show this video...
Curated OER
How Do You Find the Area of a Rectangle Whose Sides are a Monomial and a Polynomial?
Yes, it's a real-world word problem, but it's as easy as multiplying a monomial and a polynomial. Then all you have to do is to make sure you write it in simplest form.
Curated OER
What's a Rational Expression?
A rational expression has a polynomial in the numerator as well as a polynomial in the denominator. The instructor writes out an example for you to see.
Curated OER
How Do You Multiply a Monomial by a Polynomial?
The instructor gives an example of how to multiply a monomial times a trinomial. She explains verbally what she is doing but does not write each multiplication step on the board.
Sophia Learning
Sophia: Simple Factoring: Lesson 1
This lesson shows how to identify common factors in an equation and factor them out to make solving simpler. It is 1 of 13 in the series titled "Simple Factoring."
Sophia Learning
Sophia: Simplifying an Equation: Lesson 1
From this lesson, you will discover how to make an equation easier to solve by applying simplifying rules to equations. It is 1 of 12 in the series titled "Simplifying an Equation."