For the body and the mind: Try out some knee exercises and learn some new vocabulary related to posture and fitness. Enjoy!

Cheryl teaches the iconic choreography from the music video for her song "Promise This," in particular focusing on the moves from the song's chorus.

There is a lot of talk about how 3D printing could revolutionize the way that we make stuff. But what is 3D printing and how does 3D printing allow us to make almost anything from nothing? Professor Tim Minshall, Head of the Institute for Manufacturing at the University of Cambridge, explains it in this video, which is targeted at school-age students.

Fuse School: Learn the basics about the effects of global warming on the environment. Some of the problems global warming may cause are changing climate, extremes of weather, problems for ecosystems, rising sea levels, and ocean acidification.

In the 17th Century, scientific research influenced the invention of English words relating to physics, chemistry, and anatomy.

Have you ever been unsure as to how elections work in the US on a federal and state level? This video explains it all.

How to get started with Yabla...

Now that Julia fixed the problem with the client caused by her coworker’s mistake, she has the tough job of explaining to her boss what happened. Julia is smart enough to walk the fine line between understanding her coworker’s responsibilities and also showing some empathy for her situation. Watch this video to see just how well such tricky situations can be successfully dealt with!

Julia's coworker made a mistake that could cost the company money. See how Julia takes charge of the situation and manages to reach a business compromise with a client. All that remains now is to figure out how to deal with her coworker...

With the right equipment and good technique, wing surfing is possible even in light winds. Ex-windsurfing champion and wind-foil pioneer Robby Naish shares his expert tips to get up and cruising on those less breezy days.

The right cut made at the right moment is crucial to the smoothness and flow of a film. Understanding the concept of “eye-trace” helps editors make films that are far more engrossing for the viewer.

This film editing masterclass looks at both theory and technique. Deciding on the order and duration of each shot is a process that profoundly influences a viewer’s experience.

Paul, who has an Australian accent, shares what he's noticed about the differences between the English spoken in England and in the USA.

Mark Powell closes his tutorial with advice about structuring your presentation, and how to leave a lasting impression on your audience.

In this clip, Mark Powell provides best practice tips for opening and closing presentations. The key is often beginning with a story or anecdote that engages the audience.