1.
 |  | Title: Constructivism: Theory, Perspectives, and Practice by Catherine Twomey Fosnot ISBN: 0807734888 Publisher: Teachers College Press Pub. Date: 01 February, 1996 List Price: $21.95 Amazon.com Price: $21.95 |
2.
 |  | Title: Young Mathematicians at Work: Constructing Number Sense, Addition, and Subtraction by Catherine Twomey Fosnot, Maarten Dolk ISBN: 032500353X Publisher: Heinemann Pub. Date: 01 April, 2001 List Price: $22.50 Amazon.com Price: $22.50 |
3.
 |  | Title: Young Mathematicians at Work: Constructing Multiplication and Division by Catherine Twomey Fosnot, Maarten Dolk ISBN: 0325003548 Publisher: Heinemann Pub. Date: September, 2001 List Price: $22.50 Amazon.com Price: $22.50 |
4.
 |  | Title: Young Mathematicians at Work: Constructing Fractions, Decimals, and Percents by Catherine Twomey Fosnot ISBN: 0325003556 Publisher: Heinemann Pub. Date: 01 May, 2002 List Price: $22.50 Amazon.com Price: $22.50 |
5.
 |  | Title: Fostering Childrens Mathematical Development, PreKGrade 3 : The Landscape of Learning (Young Mathematicians at Work Professional Development Materials) by Sherrin B. Hersch, Antonia Cameron, Catherine Twomey Fosnot ISBN: 0325006741 Publisher: Heinemann Pub. Date: 04 May, 2004 List Price: $45.00 Amazon.com Price: $45.00 |
6.
 |  | Title: Reconstructing Mathematics Education: Stories of Teachers Meeting the Challenge of Reform by Deborah Schifter, Catherine Twomey Fosnot, Deborah Loewenberg Ball ISBN: 0807732052 Publisher: Teachers College Press Pub. Date: 01 January, 1993 List Price: $19.95 Amazon.com Price: $19.95 |
7.
 |  | Title: Exploring Ages: Grade 3 Facilitator's Guide, The Role Of Context by Antonia Cameron, Sherrin B Hersch, Catherine Twomey Fosnot ISBN: 0325006768 Publisher: Heinemann Pub. Date: 15 August, 2004 List Price: $55.00 Amazon.com Price: $55.00 |
8.
 |  | Title: Addition And Subtraction Minilessons,: Grades Prek-3 Facilitator's Guide by Antonia Cameron, Sherrin B Hersch, Catherine Twomey Fosnot ISBN: 032500675X Publisher: Heinemann Pub. Date: 15 August, 2004 List Price: $55.00 Amazon.com Price: $55.00 |
9.
 |  | Title: Addition And Subtraction Minilessons: Grades Prek-3 by Maarten Dolk, Catherine Twomey Fosnot ISBN: 0325006806 Publisher: Heinemann Pub. Date: 15 August, 2004 List Price: $15.00 Amazon.com Price: $15.00 |
10.
 |  | Title: Taking Inventory, KindergartenGrade 1 : The Role of Context (Young Mathematicians at Work Professional Development Materials) by Antonia Cameron, Sherrin B. Hersch, Catherine Twomey Fosnot ISBN: 0325006725 Publisher: Heinemann Pub. Date: 04 May, 2004 List Price: $45.00 Amazon.com Price: $45.00 |