TY - BOOK AU - Oler, Marlynne W. TI - Skill book in geometry, patterns and algebra and measurements in grade II mathematics U1 - TH 371.33 Ol2s 2015 PY - 2015/// CY - Balaoan, La Union PB - [s.n.] KW - Teaching KW - Aids and devices N1 - Bibliography: pages 203-207 ER -