Veronica Pereyra is a Technology teacher at Colegio America de Callao in Lima, Peru. She also teaches Robotics.

Bill McKibben is founder and senior adviser emeritus of 350.org. His 1989 book The End of Nature is regarded as the first book for a general audience about climate change, and has appeared in 24 languages. He’s gone on to write many more...

In this video playlist I show you how to solve different math problems for Algebra, Geometry, Algebra 2 and Pre-Calculus. The video will provide you with math help using step by step instruction. Math help tutorials is just what you...

Weighted ball programs are popular both in-person and online, but at what age is it safe to start a velocity program in baseball? Are they likely to lead to injury in the near-term or longterm? What are the pros and cons?

Rodney has over 20 years experience as an educator with Richmond Public Schools. He graduated from King William High School in rural Virginia in 1996. He received a bachelor’s degree in history from Virginia State University in 2000...

Ras J. Baraka is the 40th Mayor of the City of Newark.A native of Newark, whose family has lived in the City for more than 70 years, Mayor Baraka’s progressive approach to governing has won him accolades from grassroots organizations to...

You’ll learn idioms, get practice following American English conversation and learn all about how you can use these English phrases related to shoes in your everyday conversation! I’ll bring you along into a conversation with my husband...

We start our “Gravity Assist” virtual tour of the solar system with – where else – the Sun! Jim is joined by Project Scientist Dr. Nicky Fox of the Johns Hopkins University Applied Physics Lab to talk about our fascinating star and...

Several demonstrations of #AngularMomentumConservation are shown using a rotating stool. The equations is also derived using Newton’s Second Law. Conservation of the direction of angular momentum is also demonstrated.

Jody Davis, deputy payload systems engineer for the Wide Field Infrared Survey Telescope (WFIRST), inspires and uplifts the world. Davis supports the design, development, build and test of the WFIRST payload including...

In this video playlist I show you how to solve different math problems for Algebra, Geometry, Algebra 2 and Pre-Calculus. The video will provide you with math help using step by step instruction. Math help tutorials is just what you need...

This video serves as English listening comprehension practice for intermediate-level students. In this video, a native English speaker talks in a natural way about some of his favorite memories from the past. The subtitles are included...

Ask a million teachers and you will get a million answers, here is my stab at why I teach.

Once a player reaches 12 months after Tommy John surgery, what does their recovery and rehab look like? When do they return to normal? What's the longterm outlook? When are they fully themselves again?

Baseball parents: are you holding your son back? Or, are you helping him grow into himself as a player and one day reach his potential?

How good are you as a baseball player? Can you go D1? D3? JUCO? Pro? In this video, Dan Blewett explains how to tell where your skill level is at and how it stacks up.

Four Maryland high school students were inspired by a documentary to find a way to let people know when a potentially hazardous dust storm is incoming. Using National Weather Service forecasts improved by NASA data, their...

A clause which begins with a subordinating conjunction is called a subordinate clause. There are three kinds of subordinate clauses: Adverbial, Relative, Reported. In this lesson, Mr. P./Marc looks at “adverbial clauses”. There are...

In this video playlist you will learn how to solve, write and graph linear equations. We will start by graphing linear equations that involve one-step, two-step, multi-step and literal equations. We will then learn how to write the...

Bradford Pearson is an award-winning journalist whose work examines everything from magicians to Japanese American incarceration to his own kidnapping. He’s written for The New York Times, and Esquire, Time, and Men’s Health magazines,...

Martha Hickson has been a high school librarian since 2005. Her work has been featured in School Library Journal, Booklist, KnowledgeQuest, the American Library Association Intellectual Freedom Blog, NJEA Review, and School Librarian’s...

What's the average pitching speed by age in baseball? If you're an aspiring pitcher, your velocity training is an important aspect of your game that can't be rushed. Learn about safe velocity development by age in this video.

Here are some mental training tips for baseball players who are waiting, anxiously, for their growth spurt to show up. Don't worry - you can get through it.

Dr. Detra Price-Dennis is an Associate Professor of Education in the Department of Mathematics, Science, and Technology at Teachers College, Columbia University, in the Communications, Media, Learning Technologies, and Design program....