El ciclo del carbono (The Carbon Cycle)

"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."

There are thousands of species of bees, and not all are yellow and black. However, the telltale yellow and black of the honeybee and bumblebee are the best known. Beginning readers explore the world of bees and find out what keeps them busy all day. From flying from flower to flower to making honey, the details in this book are both familiar and new to curious future entomologists. Full-color detailed photographs complement the low-ATOS text, making it the perfect addition to any early elementary library or classroom.

"Por medio de prosa simple y dulce, y las ilustaciones vivas, de este tierno libro anima al comportamiento positivo así muestra a los niños que fácil y gratificante es expresar como ser simpatico, apreciado, y amado todos los días."--Fishpond.com.au.

California grew by leaps and bounds between the Gold Rush and 1900. People from different backgrounds emigrated to California from across America and around the world in search of a new life. This primary source reader focuses on immigration in California from the time of the Gold Rush to the end of the nineteenth century. Primary source documents allow students to see different points of view, and help students look at the world and current issues with a historical lens. This Interactiv-eBook builds literacy and social studies content knowledge through the use of intriguing primary sources...

Practice standard measurement at a farmers market! This engaging title teaches young readers how to measure common food items by their height, circumference, and more, improving their mathematical and STEM skills! Vibrant images, practical examples, and simple mathematical charts help children use standard measurements, showing them how they can use these measurements in their daily lives.

En palabras del Ignacio Solares, se desentierran las preguntas y motivaciones de la profesión como psicólogo. ¿Por qué divierte la Psicología? El autor parte de esta pregunta para realizar un recorrido por la historia de esta disciplina. Describe desde las principales corrientes psicológicas y sus promotores, Pavlov, Charcot, Freud, Jung y Skinner, y otros más.