La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

This illustrated book shows how four lads from Liverpool came to form the most popular musical group ever...the Beatles! It explains the inspiration behind some of their biggest hits and offers insight into important events happening during the time. A timeline and a glossary are included.

This truly is a strange book. For starters, it talks to the reader. What's more, there are no colors until someone gives it color. Who is going to do this? The reader of course. What better way to do this besides with your fingers and hands? Full of tracing and marks, this story is far from a coloring book.

Los dioses griegos existen. Si miras alrededor, los verás todos los días, en todas partes: en los bancos del parque, en los pasillos del instituto, dentro de ti... No tienes más que leer estos poemas para descubrirlos.

Cien devocionales breves para guiar a muchachas de 8 a 12 años en su experiencia como nuevas creyentes. 100 short devotions for girls ages 8 to 12 to guide them on their paths as new Christians.