Calendario Maya : el gran ciclo de la Cuenta Larga

An expertly written Spanish B course now updated for first examination 2020, providing students with thought-provoking materials to help them develop strong language skills and solid critical thinking. The coursebook helps students develop their Spanish language skills as they explore the five themes from the new IB Diploma Language B guide: identities, experiences, human ingenuity, social organisation and sharing the planet. Each unit begins with 'big questions' that get learners thinking about global topics such as, 'how do we express our identity?' These help students appreciate wider...

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Un periodista investiga unos extraños asesinatos y descubre que están ligados a una profecía antigua de la cábala judía.

Venerado y vilipendiado a un tiempo, Lobachevski se cierne imponente sobre la matemática del siglo XIX. Al igual que sucede a la mayoría de los mitos, el Lobachevski real está oculto por capas de negligencia y desconocimiento. Su fantástica obra, argumentaban muchos, no era otra cosa que herejía matemática, una senda falsa. Lobachevski es una personalidad abrumadora, un soñador empedernido, un hacedor de mundos imposibles pero reales. Lobachevski es, para muchos, una persona desconocida. Este libro cuenta la historia de un hombre sencillo, pero sagaz, obstinado y profundo desde el...