En la finitud de Dios

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

Count, sort, and classify the dress-up hats, cowboy hats, and silly hats! Beginning readers will enjoy learning to classify and sort objects with this brightly illustrated Spanish book. Featuring vivid images and easy-to-read text, this full-color book develops students' math and reading skills and introduces them to early STEM themes. The Math Talk section includes questions that will increase understanding of basic math and reading concepts and develop students' speaking and listening skills. Learning math is fun and easy with this engaging text!

Have you ever seen a skyscraper that is shaped like an elephant? How about one that looks like waves? Students will learn how to measure area while engaged in reading about the world's coolest skyscrapers! This Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of...

Un libro con ejercicios de conversación para las clases. Los profesores de español encontrarán en él una fuente de inspiración y multitud de ejercicios para sus clases. El libro incluye, entre otras cosas: · Situaciones de rol en el trabajo, con la familia y con amigos. · Debates. · Tarjetas con preguntas. · Imágenes para describir. · Ejercicios de exámenes oficiales. · Juegos de rol. Más de 150 páginas con ejercicios para todos los niveles que los profesores podrán usar en sus clases de conversación. Sin duda, este manual ayudará a mejorar la expresión oral de los...