Building Powerful Numeracy: Facilitator's GuideA facilitator's guide to delivering professional development based on the book Building Powerful Numeracy for Middle and High School Students by Pamela Weber Harris. Detailed lesson plans include presenter helps, such as discussion questions, sample dialogs, and detailed models. The beginning of each chapter has a handy at a glance section that displays the major big ideas, models, strategies, materials needed, and preparation for presenters