Los fósiles y las rocas

Three Quarters Of Our Earth Is Blanketed By Water. How This Water Is Used, From Bathing To Irrigating Crops Is Addressed. That Water Travels In A Never-Ending Pattern Called The Water Cycle. Tips On How To Conserve Our Most Important Natural Resource Are Included.

Students Will Love Learning More About Our Earth, Moon, And Stars In This Title. It Gives Information On The Phases Of The Moon, The Constellations Of Stars That We See In The Night Sky, Comets And Meteors, And What Exactly Happens During A Lunar Eclipse.

El polémico libro que desvela al verdadero J.D. Salinger Joyce Maynard vivió en la granja del escritor J.D. Salinger, entonces de 53 años, fue una convivencia demoledora que la marcaría para siempre. En este libro Joyce desgrana sus recuerdos con sinceridad y valentía.

Meet Ada Lovelace, the British mathematician and daughter of poet Lord Byron. Part of the beloved Little People, BIG DREAMS series, this inspiring and informative little biography follows the colorful life of Lord Byron’s daughter, from her early love of logic, to her plans for the world's first computer program. As a child, Ada had a big imagination and a talent for mathematics. She grew up in a noble household in England, where she dedicated herself to studying. Her work with the famous inventor, Charles Babbage, on a very early kind of computer made her the world's first computer...

Esta imaginativa historia está protagonizada por un adolescente, Héctor, que no solo padece acoso escolar sino que cuenta con la mala fortuna de pertenecer a una familia desestructurada y con muchos problemas. A la mayor parte de estos problemas el protagonista se enfrenta con lógica, pero esta le lleva a varios enredos que se complican tal como van pasando los días, ya que la relación que Héctor establece con los demás es el resultado de los problemas sociales que enfrenta y varios malentendidos que no puede resolver. El protagonista tienen dificultades para desenvolverse en sociedad...

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.