Los ciclos de vida de los insectos (Insect Life Cycles)

"Amphibians have some of the most interesting life cycles on Earth. The metamorphosis frogs, toads, salamanders, newts, and caecilians go through has many steps that readers need to understand and remember. This book offers a concise overview of the general amphibian life cycle as well as representative examples of the many species within the animal group. Most importantly, the accessible language is paired with diagrams of the steps of the life cycle to augment readers' understanding of this topic often found in the science curriculum."

Consolidates the Student's Book lessons with targeted practice, unit by unit Additional practice of reading, writing, speaking, listening and use of English skills Extensive grammar and vocabulary practice Complete practice exam in Unit 10 Designed for independent study at home and practice in class Audio for listening lessons available on the Student's App

Nuestra misión: que las matemáticas sean una parte divertida en la vida de los niños. Leer cuentos a los niños antes de dormir es maravilloso, pero ¿qué pasa con las matemáticas? Mucha gente no se siente cómoda con las matemáticas y los números, y con frecuencia oímos el "¡Es que no se me dan bien!". Esta actitud se ha ido pasando de padres a hijos durante décadas, y ahora, en nuestra cultura, se piensa que las matemáticas son difíciles, intimidantes y nada divertidas. Matemáticas antes de dormir quiere cambiar eso. Dentro de este libro hay problemas de matemáticas divertidos ...

Texto y fotografías sencillas demuestran diversas maneras de ser provechoso y de demostrar que te importa tu prójimo.

Eleven-year-old Jenny, whose family came from Russia to America to start a new life, meets the famous Russian composer on his 1891 trip to the New World and writes about it in her diary.