CTIM: La ciencia de los viajes: Multiplicación (STEM: The Science of Travel: Multiplication)

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...

¿Qué se hacía con la sangre de los gladiadores romanos? ¿Cuánto tardaríamos en descubrir que el sol se ha apagado? ¿Quién inventó las tijeras? ¿Nunca te lo preguntaste? ¡Claro que no, porque son datos inútiles! Sin embargo, los datos inútiles también pueden ser divertidos, curiosos y fascinantes. Este libro te ofrece centenares de datos que nunca quisiste saber pero que recordarás para siempre. Datos de la historia, los animales, los inventos, las personas y nuestro cuerpo… Algunos, increíbles (¿sabías que un hombre tuvo hipo durante 69 años?); otros, escalofriantes (si...

What has hairy paws, a fluffy tail, and huge and fuzzy ears? If you guessed a fennec fox, you're right! This book introduces early readers to a mystery animal by describing its features, one by one, using short simple sentences and eye-popping full-color photos. At the end of the book, the secret animal is revealed across a colorful, two-page spread. Young children will love showing off their beginning reading skills as they learn about this dazzling collection of wild and wonderful zoo animals--one clue at a time! Fast facts and habitat maps at the end of the book provide children with key...

This book's attractive combination of excellent color photographs and detailed illustrations will captivate young readers and hold their attention as they learn all about the animal kingdom. The child-friendly text highlights details that children are especially interested in to provide a thorough introduction to the major animal and insect groups. Text copyright 2004 Lectorum Publications, Inc.