In this video we’re going to look at how we can solve equations using a method called inspection. An equation is a mathematical sentence with two sides that are equal to each other. We solve equations to find the number or numbers that...

Of all mankind's inventions, none was more consequential than the birth of language. Our brain’s foundation is built through experiences early in life. Pat Levitt, from the Center on the Developing Child at Harvard University, studied...

This video is a lesson on the periodic table of elements. The teacher explains what the periodic table is, how it is organized, and its importance in understanding chemistry. The video covers topics such as the definition of an element,...

The video is a short educational piece that explains the importance of biodiversity and its impact on the health of the planet. The video also highlights some of the causes of species extinction, such as habitat destruction and...

This video is a math lesson aimed at teaching students how to solve the unknown number in an equation by creating a number bond. The video covers topics such as addition, subtraction, commutative property, fact families, and how to...

Writers produce complete sentences, recognizing and correcting sentence fragments. Let's practice making sure each of our sentences has a subject and a predicate.

In this video, the teacher explains how to solve real-world math problems by finding the area of a rectangle. The concepts of multiplication, rows, columns, and units are used to determine the area of different shapes.

In this video lesson, students will learn how to derive the quadratic formula by completing the square. The teacher explains the process step by step, using variables instead of specific numbers to demonstrate the general form of a...

In this video, the concept of polynomial long division is explained. The teacher demonstrates how to rewrite the division of two polynomials when at least one term is missing. The process involves setting up the long division problem,...

In this video, students learn how to solve for unknown amounts using addition and subtraction fact families. Through examples and step-by-step instructions, they will understand how to use fact families to find missing addends and...