Cuántas veces en un siglo mueve sus alas el colibrí?

Explores in story format, what drove Columbus to sail west in search of a new passage to India. Includes study questions.

Few natural forces seem as much like magic as magnets. Perhaps that’s why magnets are so fun! Young scientists will love learning about amazing magnets, both natural and man-made. They’ll discover how magnetism is harnessed to help us in many ways. This STEM-supportive volume contains comprehensible text and photographs of students and scientists utilizing magnets. It also includes a simple, fun concluding activity to encourage readers to use this super science tool themselves.

Los vikingos fueron unos marineros audaces y experimentados que mantuvieron en vilo todas las costas de Europa a lo largo de dos siglos, con sus incursiones en busca de tierras y de riquezas. También fueron buenos comerciantes y el primer pueblo europeo que inauguró la senda de los grandes descubrimientos geográficos. La parte más importante de su legado se conserva en los países escandinavos. Más allá de sus regiones de origen, la principal enseñanza que legaron los vikingos fue su capacidad de lograr grandes gestas con escasos medios materiales, a base sobre todo de arrojo y de...

Practice addition at the playground! This fun title, that has been translated into Spanish, uses examples from all around the playground to help children practice their addition and understand early STEM themes. Add up two blue swings and three red swings to get five swings! Add slides, rings, jump ropes, basketballs, and more! These familiar images work in conjunction with engaging "You Try It!" problems to encourage young readers to practice and improve their addition skills.