Curated Video
Solving Quadratic Equations by Completing the Square with Non-Unit Leading Coefficient
In this video lesson, students will learn how to solve quadratic equations by completing the square when the coefficient of the squared term is not 1. The teacher explains the concept of perfect square trinomials and how to identify and...
Curated Video
Solving Quadratic Equations by Completing the Square
In this video, the teacher explains how to solve a quadratic equation by completing the square. They demonstrate how to factor perfect square trinomials and how to create a perfect square trinomial from a non-perfect one. The teacher...
Brian McLogan
Solve with changing area using related rates
👉 Learn how to take the derivative of a function. Learn how to find the derivative of a function using the chain rule. The derivative of a function, y = f(x), is the measure of the rate of change of the function, y, with respect to the...
Brian McLogan
How to add two functions and evaluate for a given value
👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of adding/subtracting algebraic expressions...
Curated Video
Understanding Geometric Representations: Points, Lines, and Planes
In this video, students learn about the distinctness between the definition and representation of geometric terms such as points, lines, and planes. The video explains how specific notation and drawings are used to represent these...
Curated Video
Adding Polynomials by Combining Like Terms
Understand the concept of degree and how it relates to the exponents in polynomial terms. Through examples and the use of algebra tiles, students will practice adding polynomials and see that the sum is always a polynomial.
Professor Dave Explains
Psychiatric Disorders Schizophrenia, Depression, Mania, and Anxiety
There are lots of ways that things can go wrong in the brain, and some of these things lead to psychiatric disorders. Some of the more common ones include schizophrenia, depression, mania, and anxiety. How are these diagnosed? What are...
Curated Video
Representing Quantities of Money with Diagrams
In this video, students learn how to represent quantities of money using different diagrams, such as number lines and tape diagrams. The teacher discusses the importance of understanding fractions and highlights a common misunderstanding...
Curated Video
Using Neutral Fields to Calculate with Positive and Negative Integers
In this video, students learn how to create and use a neutral field to calculate with positive and negative integers. The concept of additive inverses and zero pairs is introduced, and students are shown how to break apart zero pairs to...
Curated Video
Introduction to Polymers and Polymerization Processes
The video discusses the structures and properties of polymers and explores two different ways of producing them, addition polymerization and condensation polymerization. The video also highlights the difference between the two...
Mr. Beat
Gideon v. Wainwright
Reading Through History: The Great Supreme Court Cases Panama City, Florida June 3, 1961 Sometime between midnight and 8am, someone breaks into the Bay Harbor Poolroom and steals money from a cash register. One witness reported that they...
Curated Video
Placing Fractions on a Number Line
In this video, students will learn how to accurately place fractions on a number line by dividing it into equal parts. The video explains the importance of equal-sized pieces in representing fractions and demonstrates how to locate...
Brian McLogan
Sketch the slope field of the differential equation
I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.
The Art Assignment
Is Instagram Changing Art?
Many of us who make and appreciate art spend loads of time on Instagram. How is it changing the way we interpret and interact with art? And is it actually changing the art that gets made? Let's find out.
Curated Video
Dividing Unit Fractions by Whole Numbers Using a Model
In this video, students will learn how to divide unit fractions by whole numbers using a model. The teacher explains the concept of unit fractions and whole numbers, and then demonstrates how to divide fractions by drawing a rectangular...
Curated Video
Graphing Linear Inequalities: Modeling Constraints and Solutions
In this video, the teacher explains how to model and solve problems involving linear inequalities with multiple variables. Using the example of determining the number of different types of stamps needed for a specific amount of postage,...
Curated Video
Representing Fractions as Sums of Unit Fractions Using a Number Line
In this video, students learn how to represent fractions as a sum of unit fractions using a number line. The video explains that fractions represent exact numbers on a number line, and demonstrates how to divide the distance between 0...
Brian McLogan
How is the quadratic formula derived
👉 Learn all about the quadratic formula. The quadratic formula is a formula which can be used to find the roots of (solve) a quadratic equation. The quadratic formula is given by x = (-b +/- sqrt(b^2 - 4ac)) / 2a, where a is the...
Curated Video
Finding the Perimeter of a Rectangle
In this video, the teacher explains how to find the perimeter of a rectangle using an algorithm. They clarify the difference between area and perimeter, introduce the concept of variables, and demonstrate how to use the formula for...
Curated Video
Solving Pairs of Linear Equations Visually with Visual Models
In this video, you will learn how to solve pairs of linear equations visually by using visual models. The teacher explains how drawings can help in solving equations and demonstrates this through examples.
Curated Video
Introduction to Atoms and Atomic Notation
This video provides an overview of the structure and notation of atoms, including the positively charged nucleus, negatively charged electrons, protons, neutrons, and the arrangement of electrons in energy levels. It also explains how to...
Why U
Pre-Algebra 32 - Irrational Numbers
Although the Greeks initially thought all numeric qualities could be represented by the ratio of two integers, i.e. rational numbers, we now know that not all numbers are rational. How do we know this?