La optimización mecánica en el medio acuático

This book is primarily intended to help Spanish learners in achieving great performance on the Spanish DELE exam, specifically for the level A2. In addition, it may also assist native speakers of Spanish who want to acquire, refresh or improve their knowledge to become linguistic educators. It’s important to highlight that speaking a language does not guarantee success in a specific examination. This is due to the structured design of the test, with particular questions which aim to evaluate the diverse skills of the language learners. There is a variety of questions organized by tasks and...

It takes different parts to build a house. The floor is built first. Walls need to be added next. Windows and doors, too. Learn about the steps it takes to build a house. Paired to the fiction title We Have a Box.

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.

Although we rarely consider it today, it was remarkable that the small forces of the American colonies were the victors of the American Revolution. After all, England was the most powerful nation in the world at that time. This entertaining volume, an appealing way to present the important facts surrounding the Revolution, takes readers into the biographies of the Founding Fathers as well as George III and his advisors. The crucial events and decisions that ultimately led to England's loss are presented in an accessible narrative that will appeal to young historians and Revolutionary War...