Triceratops

Mike Wingate ha tenido una infancia difícil. Lo abandonaron en un parque cuando tenía cuatro años y creció en un orfanato. Nadie volvió a por él y solo tiene unos cuantos recuerdos dispersos de sus padres. Ahora que ya es adulto, Mike está viviendo la vid

Following the stock market crash of 1929, the United States plummeted into the Great Depression and unemployment soared. But when Franklin D. Roosevelt took office the following year, he enacted federal programs, financial regulations, and public works projects to boost the economy and put America back together. In this instructive volume, students will discover fascinating facts and little-known details about this series of reforms, called the New Deal. They'll also be able to choose from a variety of hands-on projects, from map-making to writing and performing a speech to designing and...

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

A fierce ogre finds that children are becoming too smart for him to catch and eat. Instead, he passes his time writing arithmetic problems to challenge the children.