Khan Academy
Adding and Subtracting Fractions
This video shows how to add, subtract, and simplify fractions using a pie graph and an infinite blackboard. Once he has established the rule, Sal throws the viewer a curve ball with a fraction subtraction problem that results in a...
Khan Academy
Adding Fractions with Different Signs, Fractions, Pre-Algebra
Bring interest to your lesson on adding fractions with different signs by using this Khan Academy video. Sal employs a number line to explain how he adds multiple fractions with different signs. This resource could be used as an...
Curated OER
How Do You Subtract Two Rational Expressions with Different Denominators?
Reinforce instruction on the least common denominator and subtracting rational expressions with this tutorial video. Learners can view this video in class or at home. Consider using this resource to supplement your lesson plan.
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring
A brief presentation with laser-like focus, this video talks young mathematicians through the mechanics of simplifying algebraic fractions by factoring trinomials. While the factoring itself is assumed to be a mastered skill, the...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring 2
Take your class through the mechanics of simplifying algebraic fractions by factoring trinomials. Though the steps for factoring are assumed known, the process of identifying and canceling common factors are detailed with...
Curated OER
How Do You Add Mixed Fractions with the Same Denominator by Converting to Improper Fractions?
Work through adding mixed fractions by first converting each fraction to an improper fraction. This video details each necessary step, including how to reduce and convert your improper fraction back into a mixed fraction after you have...
Curated OER
How Do You Add Mixed Fractions with the Same Denominator by Converting to Improper Fractions?
Work through adding mixed fractions by first converting each fraction to an improper fraction. This video details each necessary step, including how to reduce and convert your improper fraction back into a mixed fraction after you have...
Corbett Maths
Adding Algebraic Fractions
The process requires the combination of several concepts. A video shows how individuals need several concepts to add rational expressions. Pupils must remember they need to find common denominators, combine like terms, and use the...
Krista King Math
Addition and Subtraction of Rational Expressions
A rational expression is a fraction where the denominator and/or the numerator is a polynomial. The resource presents rational expressions and how to add and subtract them. Additionally, the video connects the addition and subtraction of...
Curated OER
What's the Least Common Denominator?
Help your class take on the least common denominator by providing them with this informational video. The video gives a definition of the least common denominator and includes an example using two algebraic fractions. This is definitely...
Curated OER
What's the Least Common Denominator?
Help your class take on the least common denominator by providing them with this informational video. The video gives a definition of the least common denominator and includes an example using 2 algebraic fractions. This is definitely a...
Curated OER
How Do You Find the Least Common Denominator of Two Rational Expressions?
Adding fractions that are in rational expression form? Do they have a common denominator? No? Well, then the least common denominator needs to be found. How is the least common denominator of rational expression found? Watch this video...
Curated OER
How Do You Solve an Inequality With Variables on Both Sides?
A direct instructional video of how to solve an inequality when you have the same variable on both sides of the inequality sign, this resource could be used in class or at home.
Curated OER
Adding Rational and Subtracting Expressions Example 3
Finishing up his short series on rational expressions, Sal reviews the concept with another example. Those who have a hard time with rational expressions will appreciate the clarity with which Sal explains his process and methodology.
Curated OER
What's a Complex Expression with Rational Expressions?
The teacher defines a complex fraction. She writes an example on the whiteboard. She says that any fraction that additionally has another fraction in either the numerator, or the denominator, or both, is a complex fraction.
National Education Association
Identifying Variables: Independent and Dependent
Why did the variable add its opposite? To get to the other side. A video introduces the concept of variables. It compares and contrasts independent and dependent variables in a variety of problems.
National Education Association
Perpendicular and Parallel Lines
Provide the definitions of parallel and perpendicular lines, as well as the relationships between their slopes. Two examples explain the process of finding the equation of either a perpendicular or parallel line to another line through a...
National Education Association
Using Measures of Central Tendency
Is it better to be average or an outlier? It all depends on your perspective! The video explains the impact an outlier has on central tendency. Using multiple examples to solve for mean, median, and mode, the video proves that having an...
National Education Association
Use Coordinate Geometry to Represent and/or Solve Problems
A geometry video explains how to solve for midpoint, length of a line, and use the Pythagorean Theorem. It includes multiple guided practice problems for all three equations.
National Education Association
Know and/or Use Function Notation, Including Evaluating Functions for Given Values in Their Domain
Introduce the basics of evaluating a function using function notation with a video that makes connections between evaluating a function and substituting into an expression. The short presentation works through three examples of...
National Education Association
Writing Linear Equations
No matter how it is written, it still is a line. A video shows class members how to take points and write the equation of the line that goes through those points. It then outlines how to develop the equation whether...
Curated OER
Calculate the Slope of a Line Using Two Points
Find that slope! This video does an excellent job of demonstrating how to use the slope formula to find the slope of a line using two points. The instructor first reviews the definition of slope of a line, then works three problems using...
National Education Association
Simplify Expressions by Factoring
Got that factoring thing down? Time to apply it! A helpful video explains the process of simplifying a rational expression, showing pupils how to factor a majority of expressions using special patterns. Here is a great way to begin...
National Education Association
Solving Absolute Value Inequalities
You know how to find absolute values and you know how to solve inequalities — but what happens when these two concepts are in the same problem? A YouTube video first reviews absolute values and moves on to solving absolute value...