Chad Orzel 
Brief History of Timekeeping [EPUB ebook] 

Imagine a city with no cars or streets and where people ride boats to get around. This place is Venice, Italy. Built on a lagoon, Venice is in trouble. The city is sinking, and engineers are racing t …

Did you know that swimming pools are used to train astronauts? Athletes use swimming pools to train when they’re injured, and doctors use them to help patients feel better. Learn how swimming pools a …

Take a fascinating trip into the depths of Carlsbad Caverns and learn arithmetic patterns along the way. This book combines mathematics and literacy skills, and uses practical, real-world examples of …

In this high-interest, nonfiction text, The Marquis de Lafayette and the French, readers will learn about the fascinating life of the Marquis de Lafayette and his influence on Alexander Hamilton and …

Indian tribes once spanned the state of California when the arrival of new settlers forced them into a struggle for survival. Learn how three tribes-the Tongva, the Yokuts, and the Yana-played key ro …

Bring the pages of history to life with primary source documents! Primary sources help students achieve literacy in social studies by teaching them how to investigate and reflect on various social, e …

California’s government has a lot in common with the federal government. Both have a Constitution and three branches. Learn how these three levels of government-local, state, and federal-work togethe …

Ideal for 1st grade students, this book teaches these 8 words from Fry’s First 100 words list: is, in, into, the, or, look, who, and what. The clear images, rebus pictures and simple, repetitive sent …

What are the things that make us happy? Ladybugs and butterflies, slides and swings are things that bring us happiness! Perfect for beginning readers, this book teaches these three high-frequency wor …

Being kind is important. Teachers, bus drivers, friends, and family are examples of people we should be kind to! Perfect for beginning readers, this book teaches these three high-frequency words: be, …