The point of this study is to define the effect of project-based learning approach on 8th Grade secondary-school students' statistical literacy levels for data representation. To achieve this goal, a test which consists of 12 open-ended questions in accordance with the views of experts was developed. Seventy 8th grade secondary-school students, 35…

Recent studies on professional development programs indicate these programs, when sustained, have a positive impact on student achievement; however, many of these studies have failed to use longitudinal data. The purpose of this study is to understand how one particular instructional practice (STEM PBL) used consistently influences student…

This paper examines a non-equivalent quasi-experimental research effort, wherein two versions of a two week Project Based Learning unit were developed, implemented, and assessed. Students used a collaborative GIS or paper maps to support data analysis activities in this eighth grade Earth science unit. Attitude and self-efficacy in science as…