This video shows how a cycle of how work is completed in Agile, which is used for software development.

In recent years, we've seen an increase in the intensity of tropical storms and hurricanes due to global warming. But how and why do hurricanes form? Sigrid provides a basic explanation of this phenomenon.

Rudy is procrastinating on his New Year’s resolutions when a surprise guest arrives. It’s his hero, NBA basketball star Stephen Curry, and he’s here to help Rudy get back on track!

The "Side by Side" series always makes learning fun! In this lesson we use photos to learn the names given to close family members and some handy ways to say where these people are. And finally we hear a nostalgic country song from a family man whose photos bring his happy memories to life!

Sigrid explains how a spelling bee normally proceeds. There are fixed rules and there are options.

Ever year, the winter solstice comes on December 21 in the Northern Hemisphere. Not only is it the first day of winter, it's a turning point, as the days will then get longer.

Learn how to say what you and others are doing at this exact moment using the present continuous tense, and meet Dennis, who is having a tough day. Everybody he calls is too busy to speak to him!

Jonathan gets back to filming so that Neal can show off his skills as a shark handler. He controls the big sharks through various maneuvers, including his ultimate demonstration: holding a shark vertically using only one arm—almost like a shark headstand!

Sigrid talks about "The Elementary Spelling Book" by Noah Webster, which was the basis for the American English dictionary and a big part of the development of spelling bees in the United States.

Let's find out more about an American activity aimed at school kids: the spelling bee. What is it and how does it work?

Sigrid shows us how to prepare the corn for cooking. She also tells us how it is eaten in the United States.

Following shark handler Neal’s expert example, Jonathon tries his hand at relaxing the reef sharks into the extremely tranquil state of tonic immobility… an unforgettable experience for the wildlife enthusiast!

In the Pacific Northwest, three orcas are pregnant. How do we know that and why is it important?

Pre-production is finally over, and today is the first day of the shoot. The cast and crew come together for a traditional Maori welcoming ceremony, and Peter Jackson and members of the cast offer words of thanks and encouragement.

Actor Chris Pratt talks about his new film, "Passengers" with the Good Morning America team and gets a surprise question from co-star Jennifer Lawrence.