Khan Academy
Order of Operations
Please Excuse My Dear Aunt Sally - or whichever mnemonic your students use for the order of operations - is the focus of this video. Sal takes viewers through various mathematical equations which require the use of the order of...
Khan Academy
Introduction to Order of Operations
First demonstrating the improper ways of solving an equation (left-to-right, multiplication first), Sal shows viewers how the answer of an equation can be drastically incorrect by neglecting to use the order of operations. He uses...
MinutePhysics
The Order of Operations is Wrong
PEMDAS is not all that it is cracked up to be. The short video provides an argument that the order of operations may not be instructionally sound. The presentation shows that understanding the concepts and properties of mathematics...
Brightstorm
Order of Operations - Concept
Demonstrate the order of operations and the way to evaluate numerical expressions containing grouping symbols and exponents. An instructive video introduces learners to the mnemonic PEMDAS, which is a great way for them to build a...
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'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 a Multi-Step Equation Using Reverse Order of Operations?
Solve an equation that has both variables and fractions. Use the rules of equality to add, subtract, multiply, and divide to isolate the variable and find your answer. Don't forget to plug your answer into the original problem to verify.
Curated OER
How Do You Solve a Multi-Step Inequality Using Reverse Order of Operations?
Investigate inequalities with this instructional video. A lecturer presents an inequality that will take multiple steps to complete and works through the problem step-by-step, numbering and labeling each action she takes. This video is...
Math Antics
Solving Two-Step Equations
Order really does matter! Show your class how order makes a difference in solving equations. The presentation uses the order of operations in reverse as a guide to help solve two-step equations. Continuing, the video shows how to solve...
National Education Association
Evaluating Expressions Without Radicals
Evaluating expressions require two things- parentheses and PEMDAS. The video starts with an emphasis on using parentheses to plug in your variables. Once you have everything plugged in, PEMDAS will get your mathematicians to the correct...
Curated OER
How Do You Solve a Two-Step Equation with Fractions Using Reverse Order of Operations and Reciprocals?
In order to solve any equation, one must isolate the variable. The teacher demonstrates how to solve this multi-step equation first by using the addition property of equality and then multiplying by the reciprocal of the fraction...
Teaching Channel
Algebra Skills: Support at Every Step
"My biggest challenge in class is to get some students to put a pen to paper, because they don't want to make a mistake." Discover how two teachers are working to help special education students develop the skills they will need in an...
Curated OER
Level 1 Exponents
Both positive and negative numbers play a part in this video. Here, Sal explains the definition and function of exponents. Especially helpful for those with the tendency to multiply an integer by its exponent, this video offers several...
Curated OER
How Do You Solve a Multi-Step Equation Using Order of Operations in Reverse?
Solve an equation that has both variables and fractions. Use the rules of equality to add, subtract, multiply, and divide to isolate the variable and find your answer. Don't forget to plug your answer into the original problem to verify.
Curated OER
What Are Numerical and Algebraic Expressions?
Numerical expressions contain numbers and mathematical operations. In addition to numerical expressions, algebraic expressions contain not only numbers but also variable(s). Watch this video as the instructor illustrates several examples...
Curated OER
How Do You Put Whole Numbers in Order From Greatest to Least?
So you want to put some given values in order from greatest to least? The instructor starts out by drawing a place value chart. She then inserts all the numbers into the chart. This helps you visually see their value so you can compare...
Curated OER
How Do You Put Whole Numbers in Order From Least to Greatest?
So you want to put some given values in order from least to greatest? The instructor starts out by drawing a place value chart. She then inserts all the numbers into the chart. This helps you visually see their value so you can compare...
Curated OER
How Do You Find the Area of a Trapezoid?
Trapezoids can be tricky! Break down the process of finding the area of a trapezoid with an engaging math video. Learners explore area formula and shown exactly how to plug in information, solve, and simplify.
Curated OER
How Do You Evaluate an Expression with Exponents?
An algebraic expression and a given value for the variable. Use the substitution property of equality to plug in the given value and solve the expression. Be careful and use the order of operations correctly because there is an exponent...
Curated OER
How Do You Find the Volume of a Sphere?
The formula for the volume of a sphere is - volume equals four thirds pi times the radius cubed. That's a mouth-full. But if you are given the radius value of the sphere, all you have to do is plug it in and do the arithmetic. Just...
Curated OER
How Do You Solve a Word Problem by Writing an Equation and Plugging in Values?
There are a lot of moving parts in this word problem. There are three variables, and then there's writing out an equation. Oh my! The best thing to do is watch this video and take some good notes as the teacher explains each and every...
Mathispower4u
Evaluate an Expression in the Form 6x^2y^2+3xy+4y+5x-8 (Example)
Know how to evaluate expressions? You will after watching an informative YouTube video. The expression under consideration is 6(z^2)(x^2)+3zx+4z+5x-8. The narrator shows how to evaluate the expression for given values of x and z.
Mathispower4u
Solving a Multi-Step Linear Equation in One Variable (Example)
An equation has parentheses on both sides of the equation, including a need to use the distributive property and recall the order of operations. The resource works through the steps to isolate the variable and finds the solution to the...
Curated OER
Level 1 Exponents
Both positive and negative numbers play a part in this video. Here, Sal explains the definition and function of exponents. Especially helpful for those with the tendency to multiply an integer by its exponent, this video offers several...