365 enigmas y juegos de lógica

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...

Jorge y María son dos adolescentes como tantos otros: salen con sus amigos, se comunican con ellos en las redes sociales, se enamoran... Todo esto sería normal si las madres de María y Jorge no fueran tan famosas. Los dos chicos se ven envueltos en una espiral de rumores de la que solo salen recordando que las palabras que elegimos para contar nuestra historia son las que realmente dan forma a nuestro mundo.

This Spanish-language series, great for English language learners, uses simple text and colorful photographs and illustrations to introduce students to key math readiness skills. Each book focuses on key areas of the kindergarten math curriculum - number recognition, lengths, greater than and less than, and adding and subtracting.

Biographical And Science-Related Information, Examining The Life Of Albert Einstein And His Knowledge Of Physics.