In the heart of the province of Imbabura, Ecuador, lies a beautiful volcanic crater lake called Cuicocha. Along with Andrea, an Ecuadorian national tour guide, we'll discover both the geological and mythical origins of this fantastic natural wonder.

After providing us with clues, Ester from El Aula Azul dares us to guess which historical figure she's describing. Are you up to the challenge?

Spanish singer-songwriter Luis Guitarra tells us about his musical beginnings as well as the artists who have most influenced his manner of composing and writing music.

After many hours, one of the patients finally wakes up from surgery. Meanwhile, Jorge's attorney attempts to figure out why he left the house so intoxicated in the middle of the day.

Somehow, in the Gonzalez home, tensions seem to be on the rise rather than the Christmas spirit.

Felipe's mother is on a mission to locate her son and his girlfriend, even going so far as to inquire with Mister Tobias.

Ester, a teacher at El Aula Azul [The Blue Classroom] language school, introduces us to a friend who is very interested in learning more about the school as well as the city of San Sebastian.

Carlos shows us how to express the four types of mathematical operations in Spanish as well as teaching us terms that are frequently heard on the news and in studies.

Venezuelan rock and blues singer-songwriter Yátu performs his song, "Tú la quieres aplicar" [You Want to Apply It], which delighted audiences at the International League of Music Festivals and Artists.

With each atrocity committed by Pablo Escobar and the Medellín Cartel, including the bombing of the newspaper El Espectador and the assassinations of several political candidates, Colombia felt that it had hit rock bottom. But was the worst yet to come?

After receiving an unexpected Christmas surprise from Cata, Kevin is determined to find her the perfect gift.

As Felipe and Lucia contemplate how to escape, Felipe's mother is becoming increasingly alarmed at her inability to reach him.

The terms "matemático" and "matemática" in Spanish can be used in a variety of ways, in singular and in plural, as nouns or adjectives, to mean different things. Carlos explains this and more in this introduction to Spanish math terminology.

Lida and Cleer share more details about the Carnival of Barranquilla, the second largest carnival in Latin America after Brazil's.

Let's play more guessing games at El Aula Azul! Can you guess which famous person we're talking about?