See if you can figure out what Sigrid is describing. Don't worry! She will give you a little time to think and then give you the answer (with some extra information, too).

Try to guess what word Sigrid is describing using the clues she gives you. Remember: You can always click "pause" if you need more time!

This episode of "Think Fast" is dedicated to the summer and the heat. Try to guess what Sigrid is describing!

Get ready for another round of "Think Fast!" Sigrid will describe some objects and you have to figure out what each object is. Even if you don't know the word for it in English, you are still doing great if you can visualize the object being described.

Try to figure out what Sigrid is thinking of as she describes something. Understanding the description is just as important as guessing the answer.

Sigrid explains three ways to talk about the future and tells us about some of her new year's resolutions.

The letter "G" often combines with "N" to make a special sound. Sigrid explains how this works.

Sigrid explains what cardinal numbers are and gives us some writing and pronunciation tips.

Ordinal numbers help us put things in order or in a sequence. Sigrid teaches us the suffixes we use to turn cardinal numbers into ordinal ones.

Dates are usually expressed with ordinal numbers. Sometimes, though, what we write is different from what we say.

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.

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.

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?

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."

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.