This book provides teachers with useful tools to help students understand science. The book translates current science education research from theory into classroom instruction. The experience of the authors with teachers was utilized to help translate research into what works for quality science teaching and learning. The book establishes the fundamentals for learning science in a simple, straightforward approach that teachers can successfully implement immediately with great success. The utility of the book comes from the way the big ideas for science are related to implementation in classroom instruction and the myriad of examples the book employs. The book is consistent with A Framework for K-12 Science Education and the Next Generation Science Standards; an obvious consequence of the authors being on the writing committees for A Framework for K-12 Science Education and Next Generation Science Standards (NGSS). The authors fully realize that all states, school districts, and classroom teachers will not implement the NGSS. However, these documents will have a significant influence on school programs and classroom practices. The book is structured to support professional teachers and professional learning communities. Questions are provided with each chapter to support reflection on the ideas presented in the chapter. Structuring the chapters for this purpose also leads to some redundancies, this is intentional and hopefully will not distract from the experience for those wishing to read the book cover to cover.