Chris Luzniak

Chris Luzniak has taught math at the middle school and high school levels in several states. He began teaching in New York City public schools and has also taught in Los Angeles and (currently) Columbus, Ohio. He is the author of Up for Debate! and works with teachers to create debate and discourse routines for the math classroom.

Rob Baier

Rob Baier is a Math Curriculum Specialist near Pittsburgh, PA. He leads professional development sessions and provides math consultations for local school districts. Rob was a math teacher for 8 years, in 3 different states (Ohio, North Carolina and Pennsylvania), and a former assistant principal/curriculum director. His work has a strong focus on connecting teachers with instructional resources and providing professional development on instructional routines.

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