1 |  | Math : Explorations and applications : Level 3 / Stephen S. Willoughby, Carl Bereiter, Peter Hilton, Joseph H. Rubinstein . - Comlumbus, Ohio : McGraw Hill , 1998. - 50 tr ; 27 cm Thông tin xếp giá: 510/A.000178-000182 |
2 |  | Math : Explorations and applications : Level 4 / Stephen S. Willoughby, Carl Bereiter, Peter Hilton, Joseph H. Rubinstein . - Columbus, Ohio : McGraw Hill , 1998. - 62 tr ; 27 cm Thông tin xếp giá: 510/A.000183-000187 |
3 |  | Math : Explorations and applications : Level 5 / Stephen S. Willoughby, Carl Bereiter, Peter Hilton, Joseph H. Rubinstein . - Columbus, Ohio : McGraw Hill , 1998. - 600 tr ; 28 cm Thông tin xếp giá: 510/A.000176-000177 |
4 |  | Math : Explorations and applications : Level 5 : Enrichment workbook blackline maters / Stephen S. Willonghby, Card Bereiter, Peter Hilton, Joseph H. Rubinstein . - Columbus, Ohio : McGraw Hill , 1998. - 199 tr ; 28 cm Thông tin xếp giá: 510/A.000319-000320 |