Se llamaba Álvaro

Where did the sunflower come from? How does it grow so tall? How can its thin stalk support such a large and heavy head? These and many other questions are answered in this dazzling book. Using lushly detailed illustrations and photographs, the book takes us inside the sunflower to examine its stem, root system, leaves, and flowering heads, proving an understanding of this unique plant's structure, growth, flowering, reproduction, and cultivation.

Land has many different characteristics. It can be hilly, rocky, grassy, narrow, and dry. Or, it can be flat, smooth, sandy, wide, and wet! This Spanish book introduces students to the concept of landforms. With images that are easy to identify and clear, simple sentence structures, this science reader simplifies scientific concepts for young students as they improve their reading skills. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage students in learning...

Mathematics constitutes ideal material for exercising the art of learning and thinking. For this it is necessary that the classroom has a stimulating atmosphere which requires determined attitudes and beliefs. The book combines theory and practice and responds to questions such as these: to think in the mathematics class? on what does the knowledge of solving problems really consist of? what are the beliefs and which are the most common ones among the students? how to diagnose, evaluate and, in some cases to modify, the systems of beliefs of the pupil?).

Colección para preparar los Diplomas de Español como Lengua Extranjera (DELE). La serie prepara para la obtención de cada uno de los niveles del DELE y puede ser utilizada tanto en clase como de forma autónoma. El DELE es el título oficial y acreditativo del grado de competencia y dominio del idioma español. Es otorgado por el Instituto Cervantes en nombre del Ministerio de Educación, Cultura y Deporte de España, dentro del Marco común europeo de referencia (MCER) del Consejo de Europa.