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.

Let Sigrid tell you about the solar system that resolves around the Sun, including the order and characteristics of the planets within it. What is the closest planet to the Sun? What are the smallest and largest planets?

In this lesson, we'll talk about the weather in the future. One way to express the future is with "going to": "It's going to rain." The second way is with "will": "It will rain." You will hear both in this video, so keep your eyes and ears open!

This time, let's talk about the weather in the past using nouns, verbs, and adjectives. If we use the past tense, we can talk about yesterday, last week, last month, or even last year.

There's more than one way to talk about the weather. In part 1 of this lesson, we talk about it in the present. We use nouns, verbs, and adjectives to describe the weather.

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.

When we talk about traffic, it's not only about cars and trucks. We can talk about people on bicycles or on foot, too. They have some special rules to follow, especially in the city.

Many of us have to deal with traffic on a daily basis. Here's how to talk about it in English, include expressions such as "traffic jam," "bumper-to-bumper," and "bottleneck."

Sometimes it's hard to know how to pronounce the "-ed" ending of a regular verb in the past tense. Here are plenty of examples, taken from the story of the Ugly Duckling.

In order not to forget anything, Luana and Austin have made a list of the clothes and other items they need to pack. Austin reads the list while Luana gathers the items, and then they discuss their strategy for getting to the airport on time.

In English, we use a lot of phrasal verbs. Let's see how they work using some examples from the story of the Ugly Duckling.

Booking a room by phone in a new language can be a challenge. This video will show you some typical questions you'll be asked, and how you can answer them.

Sigrid looks at the regular and irregular verbs in part one of her rendition of The Ugly Duckling. As you listen, you can pause whenever necessary in order to practice the pronunciation of the conjugated verbs.

We have a look inside the story of The Ugly Duckling to see how the verbs work. First on the list is the past continuous tense.

Relative pronouns such as “who,” “which,” or “what” can link two “relative clauses.” Gina and Olivier review what we have learned and give us some final tips on studying English sentence structure.