Powerful tools for mathematics instruction can make a good lesson great. Math Tools in Action: Anchor Charts describe the essence of a lesson; they help focus teachers and remind students of the most important features of the concepts and skills they are currently learning. Anchor charts not only compel teachers to be clear about their instruction, they also improve student comprehension. Watch as Marco leads a year five class through a lesson on building and decomposing an array, frequently referring to and updating various anchor charts. 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 maths instruction school-wide. Now you can watch as they teach and comment on a complete lesson using these essential maths tools - tools that will help you deepen and improve your own maths instruction, no matter what grade level you teach.