This video explains the connection between the slope of a regression line and the correlation coefficient by examining standardized variables. It demonstrates how the slope of the regression line quantifies an inexact relationship...

This video provides a detailed explanation on how to calculate percentage decreases. The lecturer explains two methods for finding the new value after a percentage decrease, one using simple unitary method and the other using a...

This video explains how to calculate simple interest using the simple interest equation. It covers important vocabulary such as principal, rate, interest, and time and provides examples to demonstrate how to apply the formula. The lesson...

An introduction to inverse matrices.

This video explains how architects change the scale factor on a drawing to increase dimensions. It emphasizes the importance of multiplying, rather than adding, the dimensions by the scale factor to create an accurate scale drawing.

Percentages and Percentage Change

This video explains how artists can enlarge or reduce drawings using scale factors. It covers the concept of scale factors and demonstrates how to calculate them for both enlargements and reductions.

With its use of non-acoustic instruments, synths, and electronic production methods, EDM offers an immersive and energetic musical experience. From the disco roots of the 70s to modern subgenres like drum and bass and dubstep, EDM...

An introduction to inverse functions.

In this video, the teacher explains how to find the percent of change and determine the percent the final amount is of the original amount. They demonstrate three different approaches: using diagrams, proportions, and equations.

KS4 maths: A local dance school has a problem - it wants to enlarge the logo on their t-shirts. Dave heads off with tutu and ruler in hand to see if he can help. Dave has made two pieces of cake for himself and Fran, but cannot work out...

In this video, the teacher explains how to identify the zeros of a quadratic function that has a common monomial factor in each term. They demonstrate how to factor out the common monomial factor and set the factored form equal to zero...

In this lesson, students will learn how to determine if two triangles are similar by checking for two corresponding congruent angles using a rotation and a dilation. They will understand that a dilation changes the size of an object...

The extended marketing mix is a quintessential marketing concept that's relevant even to non marketing business professionals. It is one of the foundations of strategic marketing. This video therefore simplifies the concept and uses an...

Here we discuss the influential artist Euclid of Alexandria and his peerless work The Elements.

In this video, the teacher explains how to find the amount of change and the final amount given the original amount and the percent of change using diagrams, proportions, and equations. They emphasize that the percent of increase or...

In this video, the teacher explains the steps to draft a strong conclusion for an argumentative essay. The steps include summarizing the argument, identifying a solution, and presenting the consequence of inaction. The teacher provides...

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...

In this video, the teacher explains how to divide polynomials by binomials using long division. They provide step-by-step examples and explain common misunderstandings. The teacher also emphasizes the importance of checking the solution...

This video explains how to graph exponential functions by modeling cutting a string. It demonstrates the concept of exponential decay and shows how the length of the string decreases exponentially with each cut. The video also explains...

This video is a lesson on how to effectively use ellipses (...) to omit words from quotations. The teacher explains the rules for using ellipses and provides examples and practice exercises for students to follow. By using ellipses...

In this video, the teacher explains how to solve multistep ratio and percent problems using proportions. They use examples of applying coupons and taxes to demonstrate the concept. The teacher also clarifies the misconception that the...

This video explains how to subtract negative numbers using integer chips. It demonstrates the concept of zero pairs and shows how to add and subtract integers with like and different signs.

In this lesson, students will learn how to determine if two triangles of different sizes are similar. By using a combination of dilation and translation, they will understand that when two triangles have corresponding congruent angles,...