¿De quién son estas rayas?

Recounts the life of the Puerto Rican baseball star from his childhood poverty to his career with the Pittsburgh Pirates, and discusses his humanitarian efforts, his untimely death, and his contributions to the sport.

Discusses issues that involve dating and premarital sex among young adults and explores the consequences of making bad choices when it comes to promiscuity.

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

Discusses the various features of Australia, including its climate, mountains, rivers, lakes, animals, vegetation, coral reefs, flightless birds, population, and cities, and history of the Aborigines.