¿Dónde están los humanos?

What does the phrase "once in a blue moon" refer to? What is the difference between a waning gibbous moon and a waning crescent moon? What is the atmosphere on the Moon like? How does the Moon create tides? Students will learn the answers to these questions and more as they read all about the Moon! This nonfiction Spanish book introduces students to important scientific concepts and vocabulary as they are engaged in reading. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and national standards, the fun lab activity...

Tommy Fuller and his family help a runaway slave family follow the stars in the Little Bear constellation to freedom.

Book Features: • Ages 4-8, Grades PreK-2 • 16 pages, 8 inches x 8 inches • Simple, patterned Spanish text with full-color pictures • Includes comprehension questions, writing prompts, and high frequency words • Graphic organizers and photo glossary included Explore Science Learning: In Listos para las Ciencias: Herramientas para Ciencias, preschoolers—second graders learn all about the different types of science tools used in fun experiments that help us learn about the world around us! Science Made Fun: Science tools are used to help us discover new things about the world around...

Todo fenómeno biológico, como es la sexualidad, se explica por causas próximas (anatomía, fisiología, conducta y su desarrollo) y causas últimas (adaptación y evolución), ambas en interacción con el ambiente natural y social de cada especie, además del sociocultural en los humanos. Específicamente en humanos, muchos especialistas solo tratan de explicar la sexualidad por causas próximas y en términos de conductas conscientes e influidas solo por lo sociocultural, lo cual no es incorrecto, pero ello es solo parte de la explicación, no se acude a las interpretaciones evolutivas....