The lymphatic system consists of a complex network of lymphatic vessels, glands or nodes, and organs, such as the spleen and thymus, extending throughout the body. Through it flows a fluid called lymph. The lymphatic system has three...

Catecholamine Synthesis Lesson: Pathway, Enzymes, Co-Factors and Genetic Diseases.



Hey everyone! In this lesson you will learn about the pathway involving the synthesis of the catecholamines dopamine, norepinephrine and...

In our series finale, we're going to take a look at some of the times we've used statistics to gaze into our crystal ball, and actually got it right! We'll talk about how stores know what we want to buy (which can sometimes be a good...

In this video, the teacher explains how to compare the variability in weights of professional baseball and soccer players using medians and interquartile ranges. They demonstrate that while baseball players are heavier on average, soccer...

In this video, students learn how to divide using a repeated subtraction model. The teacher uses examples of dividing baseballs and dividing boys into teams to illustrate the concept.

In this video, students learn how to find the maximum height of a baseball hit into the air by writing its quadratic function equation in vertex form. By completing the square, they can easily identify the vertex of the parabolic...

In this video, the teacher explains how to calculate and graph exponential functions using real-life scenarios. They provide examples of calculating the population of bacteria over time and the height of a bouncing baseball. The teacher...

Butterflies! In this butterfly video for kids, learn all about these amazing insects and the journey they take to become adult butterflies! You will also learn about the larva stage of the butterfly, when they are caterpillars! You will...

the 2015 Boyle Lecture from St Mary-le-Bowhref='http://www.gresham.ac.uk/lectures-and-events/natural-theology-reconsidered-again' target='_blank' rel='nofollow'>Bow Throughout recorded history people have consistently looked to...

Warning: Contains talk of cannabis.<br/>
CBD: Marijuana Without the High

Today we’re going to talk about measures of central tendency - those are the numbers that tend to hang out in the middle of our data: the mean, the median, and mode. All of these numbers can be called “averages” and they’re the numbers...

What is the annual output of the factory in Sweden? Describe what happens to the trees when they arrive at the factory. <br/>
Tree Farming, Part 3

What's the deal with Covid variants? How well do the different Covid vaccines protect against the several variants? Today we'll tell you about the several variants, including the Delta variant that is prevalent in the US, and we'll talk...

In this lesson, students will learn how to use statistics to understand relationships between variables and solve problems using linear regression. They will explore real-world examples, such as the correlation between team batting...

In this video, the teacher explains the concept of angles and how to identify them by observing their characteristics. Using real-world examples like flashlights and baseball field diagrams, the teacher demonstrates how angles are formed...

Learn how to determine the maximum height and time of an object thrown into the air using a quadratic function. Examine a real-life scenario of a baseball being hit and model the relationship between the height of the ball and the time....

In this video, students learn how to make predictions using the line of best fit in scatter plots. The teacher explains the concept using examples related to the weight of a car and its gas mileage, as well as the relationship between...

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...

👉 Learn how to multiply polynomials. To multiply polynomials, we use the distributive property. The distributive property is essential for multiplying polynomials. The distributive property is the use of each term of one of the...

At 16, Rana Abdelhamid started teaching self-defense to women and girls in her neighborhood. Almost 10 years later, these community classes have grown into Malikah: a global grassroots network creating safety, power and solidarity for...

YouCan't See Me | POEM | A Great Big Cuddle | Kids' Poems and Stories With Michael Rosen Here is a video of me performing a poem from my book, ‘A Great Big Cuddle’, with pictures by Chris Riddell, published by Walker Books. Check out...

Psychologist Stephen Hinshaw (UC Berkeley) gives his view that teachers need more support, both financial and psychological, to deal with ADHD in and out of the classroom.

Today, we're looking at measures of spread, or dispersion, which we use to understand how well medians and means represent the data, and how reliable our conclusions are. They can help understand test scores, income inequality, spot...

This video teaches students how to estimate the mass of objects using reasoning and benchmark objects. It explains that mass is the amount of matter in an object and can be measured in grams and kilograms. Through examples and...