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

What is the passive voice all about? Sigrid takes us through the basics, step by step. In the active voice, we focus on "who" does something and in the passive voice we focus on "what" someone does.

There are plenty of ways to get around a city. How do you like to get around? This video focuses on getting around on a bike, and is intended for beginners.

Hurricane Ida was a very powerful hurricane that took New York City by surprise in 2021. Hurricanes are extreme tropical storms that can make their way north and do lots of damage to the coastal areas of North America.

Let’s learn some colors and numbers in this simple video for beginners!

This segment is about the sense of smell and the sense of taste. When it comes to the five senses, every language seems to have some quirks, and English is no exception. For example, we use the same verb — "to smell" — to talk about perceiving an odor ("I smell the lemon") and giving off an odor ("The lemon smells delicious").

Every day, we get information from lots of different sources. But how do we know what is true and what is "fake news?" In this 3-part series we explore different kinds of information and misinformation.

The senses of sight, hearing, touch, taste, and smell are essential in experiencing the world around us. Let's consider them one by one and learn how to use them in conversation. We start with "sight" and "hearing."

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!

Let's have a look at which countries are members of the European Union and where they are on the map.

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).

In this video lesson, Luana explains the names given in English to our nearest and dearest relations: the brothers, sisters, cousins, parents, uncles and aunts that make up our family tree.

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

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 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.