Powerful tools for mathematics instruction can make a good lesson great. Simple and accessible, Math tools in action: journals, bringing mathematical practices to life in the classroom on a daily basis. Math journals invite students to relate their own ideas, experiences and prior knowledge to the learning at hand while encouraging them to clarify their thoughts and to use challenging and precise math vocabulary. Watch Chris and 4th grade students investigate a mathematical argument as they defend, revise and reject conjectures using math journals. For more than twenty years, Chris Confer and Marco Ramirez have worked with administrators and teachers at dozens of schools to cultivate an environment that elevates math instruction school-wide. Now you can watch as they teach and comment on a complete lesson using these essential math tools - tools that will help you deepen and improve your own math instruction, no matter what grade level you teach. About the authors: Chris Confer has a passion for both mathematics and teaching children. Chris has authored five other books on teaching mathematics and being a mathematics coach, and she has created a popular number-assessment tool that helps guide instruction. Marco Ramirez is an award-winning educator who has successfully transformed schools using mathematics as leverage for change. Marco's work is practical and rooted in the classroom. He has taught multiple grade levels and has won the Milken Educator of the Year award as a principal.