Acero, Victorina O., Principles of teaching I / Victorina C. de Ocampo-Acero, Evelyn J. Sanchez-Javier and Herminia C. Ocampo-Castro. - Manila : Rex Book Store, c2015 - xiv, 231 p. ill. : 26 cm. - Teaach series . Includes bibliographical references and index. ISBN: 9789712371219 (NP) Subjects--Topical Terms: Teaching.Classroom management.Instructional systems.