Math Fortress
Algebra II: Quadratic Equations (Level 3 of 3)
This video goes over 7 examples covering the proper way to solve quadratic equations of the form a(px+q)^2=0 and a(px+q)^2+c=0, the common method used to solve quadratic equations of these forms is by taking the square root.
Professor Dave Explains
Algebraic Equations With Variables on Both Sides
How to solve algebraic equations.
Curated Video
Solving Equations Using Properties
In this video, the teacher explains how to solve equations using properties to justify each step. They cover properties such as the distributive property, associative property, and multiplicative inverse property. The teacher provides...
Curated Video
Using the Distributive Property and Greatest Common Factor
In this video, the teacher explains how to use the distributive property to create an equivalent expression showing the greatest common factor (GCF) of two numbers. By using the distributive property, students can simplify expressions...
Professor Dave Explains
Manipulating Functions Algebraically and Evaluating Composite Functions
Algebraic manipulation of functions and using composite functions.
Curated Video
Understanding Unit Rates
In this video, students will learn about unit rates by exploring real-world examples. The video explains that ratios compare numbers, while rates compare different units. It provides examples such as comparing the price of a gallon of...
Curated Video
Solving Subtraction Word Problems: Identifying Key Phrases
In this video, the teacher explains how to solve subtraction word problems by identifying key phrases. The teacher emphasizes the importance of understanding the problem as a whole and not just relying on key words. Examples are given to...
Curated Video
Creating Unit Rates Using Diagrams
In this video, the teacher explains how to simplify a rate to its unit rate using diagrams. They emphasize that a unit rate is a comparison of one quantity to another, reduced to something over 1. The teacher provides examples and...
Curated Video
Solving Equations Using the Distributive Property
In this video, the teacher explains how to solve equations by using the distributive property of equality. They demonstrate the process step by step, showing how to remove parentheses and simplify expressions.
Curated Video
Vectors
This live-action video program is about the word Vectors. The program is designed to reinforce and support a student's comprehension and retention of the word Vectors through use of video footage, photographs, diagrams and colorful,...
Why U
Pre-Algebra 03 - Decimal, Binary, Octal & Hexadecimal
Our modern decimal number system is base-10. Other number systems used in fields like computer engineering are base-2 (binary), base-8 (octal) and base-16 (hexadecimal).
Curated Video
Using Parentheses to Write and Read Algebraic Expressions
In this video, the teacher explains how parentheses are used to write algebraic expressions and ensure clarity in their meaning. The teacher demonstrates how to write the expression "three less than a number, times twenty" using...
Curated Video
Decoding Percent Problems in Real World Scenarios
In this video, the teacher explains the difference between percent change and amount of change. They use real-world scenarios to help students understand and decode percent problems. The teacher emphasizes the importance of identifying...
Curated Video
Finding the Best Deal: Comparing Unit Rates
In this video, the teacher explains how to determine the best deal when comparing different products. Using the example of apple juice, the teacher demonstrates how to calculate the unit price by dividing the total price by the total...
Curated Video
Writing and Graphing Quadratic Equations from Tables
In this video, we learn how to write and graph a quadratic function by examining a table that represents a quadratic relationship. The video explains the standard form and vertex form of a quadratic function, and demonstrates how to...
Curated Video
Factoring Strategies: Rewriting Expressions
In this video, the teacher explains different strategies for factoring expressions. They review factoring by grouping and factoring a difference of two squares. They also provide examples of factoring expressions completely using these...
Curated Video
Solving Systems of Linear Equations by Substitution
In this video, mathematicians learn how to solve systems of two linear equations using the substitution method. The instructor explains the concept using real-life examples, such as ticket prices and fruit costs. By substituting values...
Britlish
Bubble Idioms (subtitles)
Idioms are an important part of the English language, and this video looks at British English idioms associated with bubbles. There are subtitles on screen and the narrator narrates with clear standard British accent. Carefully selected...
Why U
Algebra 29 - Understanding Percentages
Percentages are one method of describing a fraction of a quantity. The percent is the numerator of a fraction whose denominator is understood to be one-hundred.
Curated Video
Solving Systems of Linear Equations Using the Addition Elimination Method
In this video, the teacher explains how to solve a system of linear equations using the addition elimination method. They demonstrate the process step by step and provide examples to illustrate the concept. By following this method,...
Curated Video
Finding Zeros of Quadratic Functions with Leading Coefficient Greater Than One
This video lesson teaches students how to identify the zeros of a quadratic function in standard form when the leading coefficient is greater than one. It explains the concept of factoring and setting the factored form equal to zero to...
Professor Dave Explains
Introduction to Algebra: Using Variables
An introduction to algebra and the concept of variables.
Curated Video
Supreme Court Nominee List Shortens To Mostly 'Identical' Candidates
President Trump is expected to submit his Supreme Court nominee to replace Justice Anthony Kennedy on Monday. The three favorites are almost "identical" in policy stances, says Rick Hasen, professor of law and political science at UC...
Curated Video
How Flipboard is Fighting Fake News
Flipboard CEO Mike McCue fills us in on the fundamental aspect that helps his company combat the spread of fake news. The app is also crushing it right now, as the fourth-largest driver of mobile traffic, and McCue says the company's...