Piedra de toque

This is a short fun book for children, showing them math simplified so they can learn it’s not hard and that it’s necessary to learn math in life. There are math questions and situations in this book showing that math can be applied in daily life. The book is also bilingual, meaning you can also introduce your child to Spanish or English. Math is a subject many children are scared of and tend to not embrace. This novel is made to break down some math, and the math problems are for children of a young age, for them to analyze and use critical thinking. The book features a nice math teacher ...

The Concept Of The Cube Is Defined Through Interesting Text And Photos Displaying How Cubes Can Be Found Throughout Our World.

Desiderio Vaquerizo Gil (Herrera del Duque, Badajoz; 1959) es Catedrático de la Universidad de Córdoba, donde ejerce como Profesor de Arqueología desde hace más de 20 años. Ha dirigido numerosos proyectos de investigación, y actualmente encabeza el más ambicioso de ellos, centrado en la ciudad de Córdoba entendida como yacimiento único, que sostiene un amplísimo equipo de investigadores dirigidos por él, y que está situando a la ciudad a la cabeza de los estudios sobre arqueología clásica en España, con repercusiones importantes en toda Europa. Ha publicado numerosas...

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.