"The rich, open investigations we''ve developed allow children to engage in mathematizing in a variety of ways. We honor children''s initial attempts at structuring and modeling their world mathematically, while at the same time supporting and challenging them to ensure that important big ideas and strategies are being developed progressively." -Catherine Twomey Fosnot Learn how to establish a vibrant, collaborative math workshop for students in grades 3 through 5 and how Catherine Fosnot and her colleagues introduce early multiplication strategies and show students how to work with the ratio table and the distributive property. Through 2 foundational books-Investigating Multiplication and Division: Overview and The Big Dinner: Multiplication with the Ratio Table -and nine online video clips, Cathy and her colleagues provide the strategies, lesson plans, and tools you''ll need to transform your classroom into a community of young mathematicians. In the Overviewbook Cathy provides the professional understandings needed to establish a vibrant math workshop. After chronicling the motivations and ideals that inspire her work, Cathy describes how to help students construct the big ideas, strategies, and models that shape the landscape of learning. Ensuing sections describe the architecture of an investigation and explain how the predictability of this framework fosters independence and collaboration. In addition to describing the management systems that make these investigations rigorous and responsive, Cathy suggests ways to sequence instruction and highlight how units can be used to enhance your existing curriculum. Like the other units in the Contexts for Learning Mathematics series, The Big Dinner: Multiplication with the Ratio Table provides a two-week sequence of investigations, minilessons, games, and other contexts for learning. In this unit the preparation of a turkey dinner introduces early multiplication strategies and supports automatizing the facts, using the ratio table, and developing the distributive property with large numbers. Strings of problems guide learners toward computational fluency with whole-number multiplication and build automaticity with multiplication facts by focusing on relationships. The nine accompanying video clips include live from-the-classroom video footage of the unit in action and narrated slide shows that describe the ideals that shape the math workshop and the thinking behind the Contexts for Learning Mathematics series. (Video clips are free for 6 months upon registration. You must register within 6 months of purchase.) Learn more about these resources and the series at www.contextsforlearning.com. This pack is part of firsthand''s Getting Started series. Bridging the gap between educational theory and practice, firsthand classroom materials model the carefully crafted techniques and language of master teachers in ways that help teachers refine their practice and reinvent their own teaching. The most comprehensive of these resources span more than a year of instruction. Firsthand''s Getting Started Packs were created for teachers in training and professional book study groups who want a compact, affordable way to study and tryout these transformative classroom materials. Each Getting Started Pack includes an overview book, a complete unit of study, online video clips provided free of charge for 6 months, and an accompanying study guide. Getting Started packs include: Launch a Primary Writing Workshop, Grades K-2; Launch an Intermediate Writing Workshop, Grades 3-5; Launch an Intermediate Reading Workshop, Grades 3-5; Introduce the Qualities of Writing, Grades 3-6; Monitor Comprehension with Primary Students, Grades K-2; Monitor Comprehension with Intermediate Students, Grades 3-6; Investigate the Number System, Grades K-3; Investigate Multiplication, Grades 3-5; Investigate Fractions, Grades 4-6.