Parasaurolophus is known for the trumpet-shaped crest on its head, which makes a low sound similar to the one elephants or whales make when communicating among their species. Readers learn this and other interesting facts about this dinosaur, such as what it ate, the places it called home, and how it survived among predators. This compelling material is presented through an age-appropriate text to enhance students knowledge of these prehistoric creatures. Readers uncover additional information in captivating fact boxes, colorful illustrations, and well-organized diagrams. This text keeps readers entertained while also aligning with a fundamental science curriculum topic.
Learn about the diverse and vibrant festivals that are celebrated around the world. This series encourages children to consider religious beliefs and cultural practices via easy-to-read text and informative full-colour images.
Ruby on Rails helps you produce high-quality, beautiful-looking web applications quickly. You concentrate on creating the application, and Rails takes care of the details. Tens of thousands of developers have used this award-winning book to learn Rails. It's a broad, far-reaching tutorial and reference that's recommended by the Rails core team. If you're new to Rails, you'll get step-by-step guidance. If you're an experienced developer, this book will give you the comprehensive, insider information you need. Rails has evolved over the years, and this book has evolved along with it. We still start with a step-by-step walkthrough of building a real application, and in-depth chapters look at the built-in Rails features. This edition now gives new Ruby and Rails users more information on the Ruby language and takes more time to explain key concepts throughout. Best practices on how to apply Rails continue to change, and this edition keeps up. Examples use cookie backed sessions, HTTP authentication, and Active Record-based forms, and the book focuses throughout on the right way to use Rails. Additionally, this edition now reflects Ruby 1.9, a new release of Ruby with substantial functional and performance improvements. Sam Ruby is a prominent software developer who is a co-chair of the W3C HTML Working Group and has made significant contributions to many of the Apache Software Foundation's open source software projects. He is a Senior Technical Staff Member in the Emerging Technologies Group of IBM. Dave Thomas, as one of the authors of the Agile Manifesto, understands agility. As the author of "Programming Ruby," he understands Ruby. And, as an active Rails developer, he knows Rails. David Heinemeier Hansson is the creator of the Rails framework.
His exciting series explores all there is to know about some of the most amazing dinosaurs to have walked planet Earth. With easy-to-read text and informative diagrams, this series provides a simple yet engaging introduction to the world of dinosaurs.
