| Type |  Book |
| ชื่อเรื่อง | Developing essential understanding of functions for teaching mathematics in grades 9-12 / Thomas J. Cooney, Sybilla Beckmann, Gwendolyn M. Lloyd |
| ผู้แต่ง | Cooney, Thomas j |
| ISBN | 9780873536233 (pbk.) |
| | 9780873536233 pbk. 2,040 |
| พิมพลักษณ์ | Reston, VA : National Council of Teachers of Mathematics, 2010 |
| รูปเล่ม | x, 109 p. : ill |
| หัวเรื่อง | Curriculum enrichment |
| | Functions --Study and teaching (Secondary) [] |
| | Mathematics --Study and teaching (Secondary) [] |