This chapter walks you through processes for selecting, adapting, and designing tools to use in the Feedback Loop. It provides ideas for tools teachers can use to explore selected science practices in classrooms. The tools mentioned include ways to facilitate demonstrations and related discussions, expectations you can develop for lab reports, instructions for working with models, and projects that push students to plan and pursue scientific investigations. Chapter 9 is included in this book selection and provides additional resources to explore. Teacher background information, assessments, and references are provided. This book selection also includes the Table of Contents, Acknowledgments, About the Authors, Contributors, Introduction, Glossary of Key Terms, and Index.