begashaw admasu, Behabtu; demie, Seleshi Major Advisor (PhD); Seyoum, Yilfashewa Co- Advisor (PhD)
(Haramaya university, 2017-05)
The purpose of this study was to investigate the learning difficulties (LD) and misconceptions that
preparatory school students’ have on the concept of function and their possible causes. In the study mixed
research ...