Las aventuras de la muela Sally

From the largest cargo planes and passenger jets to the smallest of single-engine crafts, airplanes are modern marvels. But just how do people build planes and what keeps them safe in the air? This exciting book takes readers inside the hangars where bolts and metal are turned into winged creations ready to take people all around the world. Amazing photographs show the aircraft construction process step-by-step, while engaging text gives a strong technical explanation of the science at work during every flight in this innovative STEM book.

California is home to the largest school system in the country. Students will learn about the history of California’s schools and higher education system with this nonfiction text that builds students’ reading skills and social studies content knowledge. The intriguing primary source maps, letters, documents, and images provide authentic nonfiction reading materials and keep students interested in learning. Text features include a glossary, index, captions, sidebars, and table of contents. This book connects to California state studies standards and the NCSS/C3 Framework and features...

This book introduces you to hippopotamuses, including their size, diet and everyday behavior, which highlights differences between those in the wild and those living in a zoo habitat.

Un libro escrito pensando en el profesor y en las tradicionales dificultades que el tema de la educación sexual encuentra en el medio escolar. La obra ofrece un instrumento metodológico para iniciar la programación de la educación sexual en la escuela y su adecuada integración en el currículum escolar. Apunta sugerencias concretas en la formulación de objetivos, selección de contenidos, diseño de actividades y evaluación. El programa abarca los diferentes ciclos escolares, desde la educación infantil a la secundaria. De interés para profesores, tutores, orientadores y psicólogos.