Investiguemos las fuerzas y el movimiento (Investigating Forces and Motion)

"Toda verdadera filosofía debe ser realizable en la existencia humana. Filosofía de la Vida. En estas palabras está el anhelo más profundo de renovación de nuestra manera de pensar, intuir y vivir. Filosofía empapada en todos aquellos acontecimientos que hacen del hombre un ser eminentemente consciente de su finalidad social. Las mejores investigaciones de la Filosofía, han sido aquellas que han tratado de realizar la existencia humana en todas sus manifestaciones. Y puede decirse, sin exageración, que es más noble, más profunda y verdadera una filosofía cuanto más se acerca a la...

Essays by well-known climbers accompany a range of superb color landscape photographs that echo the great traditions of the Ansel Adams and the Sierra Club large format books of the 1970s.

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...

800x600 Boys can be anything they want to be! This timely book joins and expands the gender-role conversation and gives middle-grade boys a welcome alternative message: that masculinity can mean many things. You won't find any stories of slaying dragons or saving princesses here. In Stories for Boys Who Dare to Be Different, author Ben Brooks-with the help of Quinton Wintor's striking full-color illustrations-offers a welcome alternative narrative: one that celebrates introverts and innovators, sensitivity and resilience, individuality and expression. It's an accessible compilation of 75...