Trilobites

This book describes dump trucks called off-highway trucks, explaining their operating equipment and dumping beds, fuel, and jobs.

Presents a variety of information on snakes, including the reproduction, the predators of the snake, and other behaviors of the snake.

Desarrollar las facultades cognitivas generales de los niños La influencia de la obra de Piaget Adquirir los conocimientos y los métodos de la ciencia Científicos y educación científica El debate conceptos versus procedimientos El nature study Aprender a investigar e investigar para comprender Desarrollar la comprensión científica La ciencia: una actividad que genera conocimiento El ámbito de los datos, los hechos y las evidencias Observar Experimentar Analizar datos y establecer conclusiones Las habilidades de investigación de los niños y niñas Las explicaciones científicas como...

"Latin America's population is estimated to be well over half a billion people, almost one-tenth of the world's population, living in thirty-three different countries and territories. This engrossing book explores the people of South America, Central America, Mexico, and the West Indies and provides extensive detail on their diverse cultures. An authoritative overview of the varied and rich traditions of each of these regions is presented, as well as a thorough discussion of the religions, languages, and ethnicities of Latin Americans."