After Skool
Does the Weather Actually Affect Your Mood?
How does the weather affect your mood? There's a common thought around the world that sunny warm weather is linked to happiness and cold cloudy weather is linked to sadness. But is there any science behind this idea? Does the weather...
Curated Video
Exploring Horizontal Scaling in Linear Equations
In this video, we compare the slopes and y-intercepts of different functions to understand how they are alike and different. By examining graphs and tables of values, we observe how the scaling affects the position of the functions in...
Brian McLogan
Finding a rule from a table of values using a combination of operations - Cool math
👉 How to write the rule of a function given the table of values. To write the rule of a function from the table is somehow tricky but can be made easier by having prior knowledge of the type of function. If the function is a linear...
Brian McLogan
Determine the left and right hand limits using infinity of a function
👉 Learn how to evaluate the limit of a function involving rational expressions. The limit of a function as the input variable of the function tends to a number/value is the number/value which the function approaches at that time. The...
Curated Video
Adding Integers with the Same Sign
In this video lesson, students will learn how to add integers with the same sign by analyzing the rules using a number line. The teacher explains the concept of absolute value and emphasizes the importance of moving in the correct...
Curated Video
Understanding Quadrants and Coordinate Planes
In this video, students learn about quadrants and how they relate to coordinate planes. The video explains how to determine the quadrant of a point by examining the values of an ordered pair. It also introduces the concept of UPS (Unique...
Curated Video
Adding Positive and Negative Integers Using a Number Line
This video explains the concept of integers and addition, and demonstrates how to graphically represent the addition of positive and negative numbers on a number line. Through clear examples and step-by-step instructions, students will...
Brian McLogan
Evaluate left hand limits algebraically of a rational function
👉 Learn how to evaluate the limit of a function involving rational expressions. The limit of a function as the input variable of the function tends to a number/value is the number/value which the function approaches at that time. The...
Brian McLogan
From a table determine the concavity of a function
👉 Learn how to determine the concavity of a function. A function is said to be concave up (convex) if the graph of the curve is facing upwards and the function is said to be concave down (concave) if the graph is facing down. To test for...
Brian McLogan
Solve a System of Linear Equations Using Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves...
The Wall Street Journal
Tracking the Economy
The U.S. economy is on a roll, setting the pace for global growth. How long can that continue? And what should we make of the rising U.S. budget deficit?
Brian McLogan
How to find all the roots of a polynomial by factoring
👉 Learn how to find all the zeros of a polynomial. 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 zeros of a polynomial are the values...
Brian McLogan
Given three real zeros, learn how to write the equation of a polynomial
👉 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...
Curated Video
C++ for Beginners - Simple Data Type: int
In this lesson, your instructor David, examines integers; signed and unsigned, how large or small they can be, and what happens if they exceed these limits. This clip is from the chapter "Variables and Assignments" of the series "C++ for...
Brian McLogan
How to Use the Double Angle Formula to Solve for the Values of X
👉 Learn how to use the double angle identities to solve trigonometric equations. When we have equations with a double angle we will apply the identities to create an equation that can help solve by inverse operations or factoring. We...
Brian McLogan
How to understand reflections of polar points
How to understand reflections of polar points
Brian McLogan
Evaluate the integral using the area of a semi circle
👉 Learn how to evaluate the integral of a function. The integral, also called antiderivative, of a function, is the reverse process of differentiation. Integral of a function can be evaluated as indefinite integral or as a definite...
Brian McLogan
Solve a quadratic by applying the square root method
👉Learn how to solve quadratic equations using the square root method. It is important to understand that not all quadratics have to be solved using factoring or quadratic formula. When we only have one variable but it is squared we can...
Virtually Passed
Shear Force and Bending Moment summary
Shear and Bending are internal forces and moments that can be calculated by making cut sections along different sections of a beam. In general, the shear force and bending moment can vary along the length of the beam x, which is why we...
Institute for New Economic Thinking
David Tuckett - Not Just the Numbers: The Psychology of Emotional Asset Management
David Tuckett explores the role emotions play in asset management and the role of psychological phenomena, such as rationalization and group think, in market activity. While good statistical research can help you make good decisions, he...
Curated Video
Positive and Negative Numbers Above and Below Sea Level
In this lesson, students will learn how positive and negative numbers are used to measure elevation above and below sea level. They will understand that sea level represents 0 elevation, and that both positive and negative elevations...
Curated Video
Subtracting Integers Using the Take Away Definition on a Number Line
In this video, students will learn how to subtract integers by using the take away definition of subtraction on a number line. The video explains what integers are, what subtraction is, and how to interpret subtraction as taking away or...
Brian McLogan
Sketch the slope field and sketch the particular equation
Learn how to create slope fields and sketch the particular solution to a differential equation. Slope fields are tools used to graphically obtain the solutions to a differential equation. It is the estimation of the graphical...
Brian McLogan
When given a point, how to find the triangle to evaluate for the 6 trig functions
👉 Learn all about evaluating trigonometric functions with triangles. In this playlist, we will learn how to evaluate, sine, cosine, tangent, cotangent, secant, and cosecant when given the sides of a triangle. If we have missing sides we...