TY  - BOOK
AU  - Peape,John Paul A.
AU  - Peape,John Paul A.
TI  - Enhancing students' learning outcomes in trigonometry and geometry through trigeocirc device
U1  - 371.33 
KW  - Mathematics education
KW  - Device
KW  - Manipulative
KW  - Learning outcomes
N1  - Includes bibliographical references
ER  -