The Maya

En el libro se describe una tormenta el?ctrica, se explica qu? son los rayos y los truenos y se indica qu? hacer para protegerse durante una tormenta.

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...

Simple text and photographs introduce the animals of the Arctic, grouped to provide practice in solving easy addition problems.

¿Qué cámara necesito? ¿Dónde instalo el micrófono? ¿Cómo ilumino mi cuarto? La guía más completa para convertirte en una estrella del canal de video más popular del mundo, con un paso a paso para encontrar tu propia identidad, consejos técnicos, aplicaciones y los mejores tips.