In this lesson, students will learn how to find imaginary roots of quadratic equations using the square root property. They will review the vocabulary related to quadratic equations and the imaginary unit. Through examples and...

This is a lecture presentation about abiotic factors and how they can affect a community. The presentation also discusses how changes in one abiotic factor can impact the relationships between different organisms within a community.

In this video, students learn how to interpret multiplication as scaling by using visual models. The example of Gary's flashlight shining three times farther than mine is used to demonstrate how multiplication can represent the...

👉 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...

We’ve scoured the data for you when it comes to Vitamin D supplements, coming up empty-handed almost every time. We know it doesn’t help with a variety of conditions, including those related to the cardiovascular and musculoskeletal...

In this video, the teacher explains the difference between linear and exponential functions using examples and graphs. They demonstrate how to identify equal differences in a linear function and equal factors in an exponential function....

This film shows the importance and limitations of reductionism in the nature of psychological explanation. using the example of research into obesity. It cautions students against simply using reductionism as a critique to be compared...

When I was a medical student, I remember doing a psych rotation on a pediatric ward. I was struck by how many of the admissions were for eating disorders. Even before then, I was aware that more than a small number of my female friends...

This video discusses the determinants of price elasticity of demand, which is a key concept in economics. The video uses two examples and explains the five main factors that affect the price elasticity of demand at an A-level, including...

Scientists at the National Center for Atmospheric Research (NCAR) and partner organizations are using specially equipped aircraft, mobile radars, balloon-mounted sensors, and sophisticated computer simulations to measure local and...

Heart disease continues to be the number one killer in the United States. Because of that, billions of dollars are spent every year on medications that reduce your risk of disease and death. Compounding this problem, many of the risk...

The video talks about different motivational theories that businesses can use to increase the motivation and productivity of their workforce. It discusses four main individual studies conducted over time, starting with Taylor's theory...

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?

In recent years, life expectancy in the US has been dropping. A significant contributor to that drop has been deaths of despair. Drug overdoses and suicides have increased in tandem with the opioid crisis, and the outcome is shorter...

Any natural number can be decomposed into a product of prime factors. Prime factorization is fundamental to many arithmetic operations involving fractions.

In this lesson, students learn how to solve multiplication problems by drawing pictures in groups. They review the concepts of factors and products, as well as the commutative property of multiplication.

In this video, the teacher explains how to write the equation of a polynomial by analyzing its x-intercepts. They demonstrate the process using different graphs and explain the importance of factored form and the multiplication property...

In this lesson, students will learn how to simplify positive integer powers of the imaginary unit, "i". By considering the remainder when the exponent is divided by 4, students can easily determine the simplified value. The lesson...

Everyone just knows that violence is on the rise, especially among kids. Everyone just knows that violent video games have something to do with it. Except violence isn't on the rise, as we showed in our "Sky isn't falling episode". And...

The video discusses the potential problems that firms may face when implementing a strategic change, focusing on both internal and external factors that can impact the success of a strategy. The speaker also explores the different types...

In this lesson, we observe that as X approaches infinity, both polynomial and exponential functions approach infinity. However, through examples and graphs, we discover that exponential functions eventually surpass polynomial functions...

The video explains the concept of aggregate demand and its four expenditure components that make up the total expenditure for an economy's goods and services over time - consumption, investment, government spending, and net exports. The...

This video provides an overview of floods, including their causes and different types. It also highlights the potential impacts of prolonged flooding, such as damage to infrastructure and increased risk of waterborne diseases. The video...

This video is an introduction to business decision making, discussing the thought process behind selecting a logical choice from various alternative options for individuals or businesses. The video presents the example of income...