Vidas que cambian vidas

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...

Many things can be found in the woods. Some you need to watch out for. Find out about what can be found in the woods. Paired to the fiction title Billy’s Camping Trip.

Un lápiz que se dedica a realizar garabatos en todas partes, huye de una goma que lo persigue para borrar sus garabatos, atónita ante el hecho de que el lápiz no sea capaz de expresarse escribiendo o dibujando cosas bellas. La goma decide visitar al sacapuntas y exponerle su rechazo al hecho de que el lápiz no haga buen uso de su poder.

This guide gathers a selection of more than 500 species of vertebrate animals cataloged and arranged in colored illustration. It is an exhaustive and complete guide that provides precise information about each species, and that captures all the beauty and diversity of the vertebrate world in spectacular design and with enthralling visuals.