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The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

It is July 4 and you are going to see the fireworks. But do you know why? It's Independence Day! Turn the pages of this book to find out why our country had to win its freedom, what happened on July 4, 1776 that makes this day special, why we watch fireworks on July 4. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.

Cada cuaderno tiene 64 páginas y están pensados para trabajarlos durante todo el curso pues las actividades que contienen son reflejo de los contenidos que se abordan en primer curso. Cada una de las páginas contiene tres o cuatro actividades, numerando las actividades por página. Las actividades están planteadas de forma progresiva, en orden de dificultad creciente, de manera que las actividades que figuran al principio del cuadernillo son para trabajarlas en los comienzos del curso, a medida que éste avanza se trabajarían actividades de páginas intermedias y al final de curso...

How does a frog grow? Beginning as a tiny egg and then a tadpole, a frog stays mostly in the water until it is fully grown.