Las cadenas alimentarias en el desierto (Desert Food Chains)

¡¿Cómo es posible?! ¡Chillííí! En mi ausencia, el profesor Voltio ha instalado un sistema especial de seguridad y ahora estoy encerrado dentro de mi propia casa. ¿Quieres ayudarme a salir? Disponemos de un plano y de muchas pistas... ¡Será una aventura que te hará vibrar los bigotes! Un libro de actividades para pasarlo en grande.

In what ways are the branches of government like a basketball game? How can a school yard game's rules liken themselves to a constitution? Through engaging analogies and introductions, our new Spanish-language government series gets English language learners ready for election 2008. Correlated to the fourth and fifth grade social studies curriculum, My American Government introduces students to how our government works. Students learn about the U.S. Constitution, the branches of government, citizens' basic rights, and how we elect our leaders.

Lincoln Rhyme and Amelia Sachs return to face a criminal whose ingenious staging of crimes is enabled by a terrifying access to information. When Lincoln's estranged cousin is arrested on murder charges, the case is closed. Forensic evidence from Arthur's home is found all over the scene of the crime, and it looks like the fate of Lincoln's relative is sealed.

How many elephants? How many giraffes? Count the animals of the Serengeti! Early readers will learn cardinal numbers and counting by fives with this Spanish book for kids. With bright images and simple text, this full-color book develops students' math and reading skills. The Math Talk questions build fluency and comprehension of basic math concepts. Perfect for shared or guided reading, this nonfiction kids book is ideal for kindergarten and ages 4-6.