Instructional Video3:29
Brian McLogan

How does the discriminant relate to the quadratic formula

12th - Higher Ed
👉 Learn how to solve quadratic equations using the quadratic formula. A quadratic equation is an equation whose highest power on its variable(s) is 2. The quadratic formula is a formula which can be used to find the roots of (solve) a...
Instructional Video5:09
Brian McLogan

Solving a quadratic using quadratic formula with two real solutions

12th - Higher Ed
👉 Learn how to solve quadratic equations using the quadratic formula. A quadratic equation is an equation whose highest power on its variable(s) is 2. The quadratic formula is a formula which can be used to find the roots of (solve) a...
Instructional Video4:08
Brian McLogan

How to solve a quadratic using the quadratic formula

12th - Higher Ed
👉 Learn how to solve quadratic equations using the quadratic formula. A quadratic equation is an equation whose highest power on its variable(s) is 2. The quadratic formula is a formula which can be used to find the roots of (solve) a...
Instructional Video4:09
Institute for New Economic Thinking

John Mauldin - The Death of the Expert Business 5/5

Higher Ed
In Part 5 of this five-part INET "From the Director's Chair" interview, INET Executive Director Robert Johnson asks John Mauldin how young people should prepare for some of the difficult realties of the 21st century. Mauldin makes the...
Instructional Video6:52
Brian McLogan

What does the discriminat tell us about our zeros of a equation

12th - Higher Ed
👉 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...
Instructional Video0:59
Brian McLogan

Classify a polynomial and determine degree and leading coefficient

12th - Higher Ed
👉 Learn how to classify polynomials. A polynomial is an expression of the sums/differences of two or more terms having different integer exponents of the same variable. A polynomial can be classified in two ways: by the number of terms...
Instructional Video4:56
Brian McLogan

Algebra 2 - Why do we rationalize the denominator with complex numbers, (6 + 8i)/9i

12th - Higher Ed
In this video tutorial I show you how to divide complex numbers. Since complex numbers have an imaginary part which we cannot divide into other numbers we rewrite the expression by multiplying by i or the conjugate on the denominator or...
Instructional Video17:26
Intelligence Squared

Neuroscientist and philosopher Sam Harris on the Templeton Prize

Higher Ed
An interview with Sam Harris before his talk for IQ2 on 11th April 2011. Sam Harris on the Templeton Prize - IQ2 interview
Instructional Video6:00
Curated Video

Adding and Subtracting Rational and Irrational Numbers

K - 5th
This video explains how to predict the result of adding and subtracting rational and irrational numbers by looking at general cases algebraically. It covers the definitions of rational and irrational numbers and emphasizes that adding...
Instructional Video4:53
Brian McLogan

Ordering real numbers from least to greatest

12th - Higher Ed
In this video series I show you how to graph and order numbers. It is important when graphing and ordering numbers that we have all of our numbers simplified and written in the same form. We then can arrange the numbers from least to...
Instructional Video4:18
Brian McLogan

Write the equation of the polynomial given the zeros

12th - Higher Ed
👉 Learn how to write the equation of a polynomial when given rational zeros. Recall that a polynomial is an expression of the form ax^n + bx^(n-1) + . . . + k, where a, b, and k are constants and the exponents are positive integers. The...
Instructional Video6:17
Brian McLogan

Learn how to use Descartes rule of signs and the fundamental theorem of algebra

12th - Higher Ed
👉 Learn about Descartes' Rule of Signs. Descartes' rule of the sign is used to determine the number of positive and negative real zeros of a polynomial function. Knowing the number of positive and negative real zeros enables also to also...
Instructional Video5:08
Brian McLogan

Solving using the quadratic formula

12th - Higher Ed
👉 Learn how to solve quadratic equations using the quadratic formula. A quadratic equation is an equation whose highest power on its variable(s) is 2. The quadratic formula is a formula which can be used to find the roots of (solve) a...
Instructional Video4:20
Brian McLogan

How to use Descartes rule of signs to determine the number of positive and negative zeros

12th - Higher Ed
👉 Learn about Descartes' Rule of Signs. Descartes' rule of the sign is used to determine the number of positive and negative real zeros of a polynomial function. Knowing the number of positive and negative real zeros enables also to also...
Instructional Video20:28
Curated Video

Grade 8 Common Core Math YEAR END REVIEW Part A

9th - 12th
This video lesson provides guided practice to prepare for a Grade 8 Common Core Mathematics cumulative assessment. The questions that are presented and modeled are the released 2018 MCAS Session A questions. A calculator is not...
Instructional Video3:56
Brian McLogan

Tutorial - How do we divide complex numbers, 8/i

12th - Higher Ed
In this video series I will show you how divide complex numbers. We do this by eliminating the imaginary number on the denominator by producing equivalent fractions. We do this by multiplying i if we have an imaginary number on the...
Instructional Video5:13
Curated Video

Understanding Closure Property: Sets of Numbers

K - 5th
Closure refers to the property of a set of numbers and operations where performing those operations on any two elements of the set always results in another element of the set. We examine various sets of numbers, such as whole numbers,...
Instructional Video4:12
Brian McLogan

Graphing logarithmic equations

12th - Higher Ed
👉 Learn all about graphing natural logarithmic functions. A logarithmic function is a function with logarithms in them. A natural logarithmic function (ln function) is a logarithmic function to the base of e. The graph of the parent...
Instructional Video4:24
Brian McLogan

Learn to describe and solve for the zeros using completing the square

12th - Higher Ed
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Instructional Video4:57
Curated Video

Reasoning with Exponents and Radicals

9th - 12th
In this short video we will answer a standardized math test question where we are asked to find the value of the unknown variable in a given equation for different situations. We will review the terms power, base, exponent, square root,...
Instructional Video5:28
Brian McLogan

What is the discriminant and what does it mean

12th - Higher Ed
👉 Learn all about the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of...
Instructional Video11:06
Brian McLogan

Master Writing the equation of a polynomial given irrational zeros

12th - Higher Ed
Master Writing the equation of a polynomial given irrational zeros
Instructional Video3:31
Brian McLogan

Graph and order these numbers from least to greatest

12th - Higher Ed
In this video series I show you how to graph and order numbers. It is important when graphing and ordering numbers that we have all of our numbers simplified and written in the same form. We then can arrange the numbers from least to...
Instructional Video7:25
Let's Tute

Operations on Real Numbers: Addition and Subtraction

9th - Higher Ed
The video is a lesson on rational and irrational numbers and their mathematical operations. The teacher explains the difference between rational and irrational numbers and how they can be added and subtracted. The lesson includes...