Construyendo una casa

Brush your teeth up and down to keep your teeth healthy and your smile beautiful. Brushing your teeth is easy. Paired to the fiction title My Routine.

Many things can be found in the woods. Some you need to watch out for. Find out about what can be found in the woods. Paired to the fiction title Billy’s Camping Trip.

Our senses help us discover things at the beach. Learn what you can hear, see, smell, and touch at the beach. Paired to the fiction title Wally and Molly Go to the Beach.

Severn Cullis-Suzuki was only twelve years old when he addressed the entire world: What are we doing to Earth, our home? How far can human greed go? Little Severn embarrassed the world leaders and asked them to be consistent, that their actions would reflect their words. An emotional speech, full of truths as simple as they are revealing, and even more relevant today than when it was delivered. This is a bilingual edition.

Si usted es de los que piensan que apenas hay relación entre la condición humana y las matemáticas, tiene que leer este libro. En él se encontrará con la mitología, la música, la guerra, la astronomía, la literatura... y las matemáticas viajando juntas a través del tiempo y del espacio; desde Egipto, Mesopotamia, la Grecia clásica o la Constantinopla asediada por los turcos hasta la Polonia ocupada por los nazis, Los Álamos de las primeras bombas atómicas o Hiroshima y Nagasaki. Un periplo fascinante desde el centro de la Tierra a los planetas exteriores del sistema solar, del...

There are many steps in the nitrogen cycle that include difficult concepts and words: denitrification, prokaryotes, ammonia, and more. With the help of this understandable book, even struggling readers will grasp this cycle of nature. Low-level language, fact boxes, and an extended glossary provide readers with essential vocabulary explanations that allow them to further understand each step of the cycle. Full-color diagrams aid readers' comprehension as they move through the cycle from start to finish, and then around again.

Cuento infantil para aprender los conceptos científicos: Número cardinal. Descomposición-composición de un número, Adición. Memorización de parejas de sumandos cuyo resultado sea mayor de 5 y menor de 10. Y los valores: Aprendizaje cooperativo, Respeto a los demás.