Yo y la filosofía

Did you know that gases have no size or shape? Gases can become liquids when they get cold. Discover more interesting facts in Gases, part of the States of Matter series of EYEDISCOVER books.

Each year, the Coles look forward to their family reunion. This year, the Coles are in charge of all the planning. They use two-digit subtraction in a lot of the planning, especially when deciding how much food to buy and figuring out how many people are coming. Look inside to see more subtraction in action!

Until just over 150 years ago, northern Mexico extended thousands of kilometers farther than its current border with the United States. Many different indigenous groups flourished in that region before the Conquistadors arrived. What we know about their lives and customs is the result of archeological discoveries and the chronicles of the first Spanish priests and soldiers that had contact with them.

"With vivid photographs and simple text, books in this series introduce children to the concepts of currency, exchange, and global diversity. In this book, children learn how people spend money on goods and services around the world."