Introducing the five practices -- Laying the groundwork : setting goals and selecting tasks -- Investigating the five practices in action -- Getting started : anticipating students' responses and monitoring their work -- Determining the direction of the discussion : selecting, sequencing, and connecting students' responses -- Ensuring active thinking and participation : asking good questions and holding students accountable -- Putting the five practices in a broader context of lesson planning -- Working in the school environment to improve classroom discussions -- The five practices : lessons learned and potential benefits. Appendices: Web-based resources for tasks and lesson plance -- Lesson plan for building a playground task -- Monitoring chart-bag of marbles task