9780325043630 | Pck lslf/d edition (Heinemann, August 29, 2012), cover price $249.38 | About this edition: "Our digital-lab environment provides an active, more meaningful professional development experience, which empowers teachers to integrate theory and practice.

9780325010083 | Firsthand, March 5, 2008, cover price $31.25

9780325009001 | Pck pap/co edition (Heinemann, August 24, 2006), cover price $72.50 | About this edition: In their series of professional books for teachers, Young Mathematicians at Work, Catherine Twomey Fosnot and Maarten Dolk described Mathematics in the City, an innovative project where teachers helped young children construct a deep understanding of number and operation in a math-workshop environment.

9780325009056 | Cdr edition (Heinemann, August 15, 2006), cover price $24.38 | About this edition: In Exploring Playgrounds, participants can interact with footage of seventh graders: constructing big ideas related to multiplying fractions making connections to multiplication's commutative property uncovering the relationship between fractional parts and a changing whole System Requirements for CD-ROM Windows/PC Pentium II Processor 266MHz (or higher) Windows 98 (or higher) 64 MB RAM (more recommended) SVGA Color Display (or better) 4x CD-ROM Drive (or faster) Sound Card 16-bit Flash(tm) Player and Acrobat Reader Quicktime 6.

9780325009032 | Cdr edition (Heinemann, August 15, 2006), cover price $36.88

9780325009018 | Cdr edition (Heinemann, August 15, 2006), cover price $24.38 | About this edition: In their series of professional books for teachers, Young Mathematicians at Work, Catherine Twomey Fosnot and Maarten Dolk described Mathematics in the City, an innovative project where teachers helped young children construct a deep understanding of number and operation in a math-workshop environment.

9780325008974 | Cdr edition (Heinemann, February 9, 2006), cover price $24.38

9780325008998 | Cdr edition (Heinemann, February 9, 2006), cover price $24.38 | About this edition: Recommended by the Ontario Ministry of Education     Grade five students make connections between fair sharing, partitive division, numerators and denominators

9780325007779 | Ina cdr edition (Heinemann, July 26, 2005), cover price $26.25 | About this edition: Recommended by the Ontario Ministry of Education     In Working with the Array, your workshop participants will observe fourth graders as they construct some of the big ideas related to surface area and volume, making connections between multiplication's commutative and associative properties and uncovering landmark division strategies like halving and factoring.

9780325007793 | Ina cdr edition (Heinemann, July 26, 2005), cover price $26.25 | About this edition: Recommended by the Ontario Ministry of Education     Fostering Children's Mathematical Development focuses on short video clips from interviews, routines, minilessons, games, and investigations.

9780325007809 | Pck edition (Heinemann, July 26, 2005), cover price $72.50

9780325007755 | Cdr edition (Heinemann, March 14, 2005), cover price $39.38 | About this edition: In their series of professional books for teachers, Young Mathematicians at Work, Catherine Twomey Fosnot and Maarten Dolk described Mathematics in the City, an innovative project where teachers helped young children construct a deep understanding of number and operation in a math-workshop environment.

9780325007717 | Cdr edition (Heinemann, March 4, 2005), cover price $26.25

9780325007731 | Cdr edition (Heinemann, March 4, 2005), cover price $26.25 | About this edition: Recommended by the Ontario Ministry of Education     In Turkey Investigations, your workshop participants will observe third graders as they begin to construct ideas about multiplication.

9780325006819 | Cdr edition (Heinemann, August 17, 2004), cover price $24.38 | About this edition: Recommended by the Ontario Ministry of Education     In Exploring Ages, Grade 3, students explore addition and subtraction through the lens of ages, building new understandings and strategies and learning concepts like removal, missing addends, and constant difference as they solve problems that reflect their natural curiosity.

9780325006802 | Cdr edition (Heinemann, August 17, 2004), cover price $24.38 | About this edition: Recommended by the Ontario Ministry of Education     In Addition and Subtraction Minilessons, clips of real teachers conducting effective minilessons in real classrooms show you how these short, focused sessions can build big mathematical thinking in young learners.

9780325006772 | Ina cdr edition (Heinemann, May 4, 2004), cover price $24.38 | About this edition: Book by Dolk, Maarten, Fosnot, Catherine Twomey

9780325006789 | Cdr edition (Heinemann, May 4, 2004), cover price $24.38

9780325006796 | Ina cdr edition (Heinemann, May 4, 2004), cover price $24.38 | About this edition: Recommended by the Ontario Ministry of Education     Fostering Children's Mathematical Development focuses on short video clips from interviews, routines, minilessons, games, and investigations