Dinosaurios del 1 al 10

In a dream, Joaquín meets various animals and discovers that they have very different tails which prove very useful to them.

Posing questions which range from the most unusual matters to the most elementary ones, Questions that make your hair stand on end 2 focuses on the Earth and the Sun. Readers will be able to entertain themselves with very illustrative experiments and will also get to know what is so special about the Eiffel Tower, who Diogenes was, why Magellan lost a day on his way, why we get goose bumps, how can temperature be measured with a cricket, among other curious facts. In addition to the recognition of critics and readers, Questions that Make Your Hair Stand on End 2 was awarded the Premio...

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. Students will learn about the events that lead to the American Revolution. With a visually appealing layout, this ESL book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade level. Packed with information and primary source maps, images, and...

Este libro se trata del gran ciclo de la Cuenta Larga y la profecía del fin de ciclo : - el apogeo de la Cuenta Larga durante los 400 años del Baktún 9, la invención del cero - el origen de la profecía del fin de ciclo y las fechas que contradicen esta profecía. - el estudio de la estela de Tortuguero, conocido para anunciar el fin de ciclo del calendario maya. - por último, el Baktún 10 y los principios de las Cuentas Cortas Es la segunda parte de la serie "Los calendarios mayas", que trata de los principales calendarios mayas y del gran ciclo del calendario maya. El precedente libro ...

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...

¿Por qué los judíos son objeto de un odio particular?¿Cuándo apareció el antisemitismo? ¿Quiénes son los sabios de Sion? ¿Por qué Hitler detestaba a los judíos? ¿Existe un “negocio de la Shoah”? ¿El antisionismo es antisemitismo? Este libro no duda en hacer las preguntas más perturbadoras. Desarma con claridad y tranquilidad las ideas falsas, las trampas y las teorías del complot. Una guía indispensable para comprender las raíces del antisemitismo y reflexionar acerca de su actualidad.