The purpose of this study is to determine the level ofappropriateness of an eigth grade Science and Technology textbook,workbook and teacher’s guidebook to the constructivist approach. TheScience and Technology for 8th graders textbook, work book and guidebook which MONE has publicated by DIKEY, have been investigated.This study which was carried out with document analysis method.“Constructivist Coursebook Evaluation Scale” was used in order tocollect the data . Tha data was evaluated according to this scale whichwas developed by Küçüközer Bostan, Kenar, Seçer ve Yavuz (2008) bybeing made some changes and additions. The reliability coefficient ofthe scale was calculated as .78. There are three parts in the scale.These are introduction, teaching, and assessment parts. It was choosentwo units randomly from the eight units in the books and investigatedby using “Constructivist Coursebook Evaluation Scale”. These units are“Division of Cell and Heritage” and “ Nature of the Matter and ItsProperties” units. As a resul of the study, it was found that for theintroduction criteria for the two units are insufficient in guide book andwork book but it is less sufficient in textbook. For the teaching criteriathe units are less sufficient in guide book and textbook but it isinsufficient in work book. Especially it was seen that it was not givenimportance to evaluation part in the book sets and this part isinsufficient in these books. As a result for the examined unit, it wasdetermined that the appropriateness of the textbook, workbook andteacher’s guidebook are less sufficient to the constructivist approach.