What do the airplane, the escalator, the vacuum cleaner, and the Polaroid camera have in common? It took many, many attempts to perfect these inventions. But the people who invented them persevered and did not give up on their ideas. With TIME For Kids content, this nonfiction book will engage students in reading about inventions as they build their comprehension, vocabulary, and literacy skills. The Reader's Guide and culminating activity direct students back to the text as they develop their higher-order thinking skills. Check It Out! provides resources for additional reading and learning. With text features such as a glossary, index, and table of contents, this book aligns with national and state standards and will keep students engaged in reading.