Corpin Mary Grace A. ,,,[et.al] <br/><br/>Development Validation and Acceptability of Modules in Trigonometry for Fourth year High school student Corpin Mary Grace A. ,,,[et.al]  - x,87pages  .illustrations  28cm <br/><br/>Undergraduate Thesis<br/> <br/><br/> validate and determine the level of acceptability of mathematics modules which will serve as supplementary instructional material in teaching trigonometry <br/><br/><label>Subjects--Topical Terms: </label><br/><br/><label>LC Class. No.: </label>LG 221.59  / .C8171;2013