Caņeba, Ceejay T., Development and validation of inquiry-based learning (IBL) instructional material in teaching mathematics 8 / Ceejay T. Caņeba. - vi, 100 leaves : colored illustration, figures, tables ; 28 cm. Includes bibliographical references. Subjects--Topical Terms: Inquiry-based learning (IBL).Curricular validation.Instructional materials.Mastery level.Mathemetics. Dewey Class. No.: / C235d