Teaching volleyball to first-timers? These drills, combined with some awesome trainer balls will have everyone up to speed in a hurry. More comfortable to play, and higher success, this is the ideal way to learn volleyball.

Beginning in the late nineteenth century and throughout the twentieth century, geologists, archaeologists and paleoanthropologists have given the world evidence of the physical and cultural development of humans. Amazing discoveries...

This video emphasizes the importance of understanding that longer numbers with more digits are not necessarily larger. The video provides examples and walks through the process of comparing decimals in fraction form, ultimately helping...

Through animation, I explain various aspects of focal length, from the principle of the subject, to crop factor, and finally the different classifications of lenses.

In this animation, I explain Aperture and how it interacts with the various parameters of photography.

This week's journey comes to you unedited and in real-time as we explore a mysterious infection.

This video covers exam strategy, Arithmetic, Square Roots. This is part 4 from the series 'Introduction to the Math Section of the SAT'.

Upon viewing the Water, Water, Everywhere video series, students will be able to do the following: List some of the ways they use water everyday in their lives. Describe why water is important to plants and animals. Explain the...

In this video, mathematicians learn how to compare fractions using "how much more" questions. They explore the concept of finding the difference between two fractions and use visual representations to understand and solve the problems....

This lesson covers the metric system for weight measurement, including units such as kilogram, gram, and milligram, as well as how to convert between these units. The teacher also demonstrates problem-solving strategies and provides...

In this video, students learn how to multiply multi-digit numbers using the area model. The video explains the concept of multiplication as repeated addition and introduces the idea of using arrays to represent multiplication sentences.

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, the teacher explains how to solve division problems with fractional answers using visual fraction models. The examples given involve sharing licorice ropes and lemonade equally among a certain number of children. The...

In this video, the teacher explains how to count forward and backward from a three-digit number using number patterns. The lesson emphasizes the base 10 place value system and demonstrates how changing one place can affect the entire...

Now that we know more about the structure of bones, we are ready to see how they all come together to form the skeletal system. An adult has 206 bones. What are they? How are they organized? What do they do? Let's go through all of these...

In this video lesson, we explore the symbols used to compare numbers and emphasizes that longer decimal numbers are not necessarily larger. Through examples and visual representations on a number line, students practice comparing...

Finding the least common multiple of a set of numbers.

The examples in this video cover addition, subtraction, multiplication, and division, and highlight the importance of understanding the meaning of math vocabulary words. The teacher also emphasizes the concept of equivalent expressions...

In this video, the teacher explains how to write decimals in expanded notation. They start by reviewing the concept of place value and its importance in our number system. The teacher then demonstrates how to write a decimal number in...

Michael Goodisman is digging up the dirt on yellow jackets' peculiar sex lives by studying their nests, behavior, and genetic make-up. With support from the National Science Foundation, he is getting a better understanding of what drives...

In this video that meets Common Core 1st grade math standards, the teacher introduces the concept of base 10 and how it makes counting and representing numbers easier. The teacher demonstrates how to count using base 10 by showing a set...

Physics teacher and solar astronomer Simon Foster explores how we developed our understanding of the universe and uses our changing models of the solar system to explain how science works.



On location on top of a volcano in...

This video explains the concept of integers and demonstrates how to graph the addition problems on a number line. Students also learn to consider the absolute value of the addends to determine whether the answer should be positive or...

In this lesson, students will learn how to solve word problems involving adding fractions with the same denominator by breaking them apart into unit fractions. They will understand that the numerator represents the number of parts and...