Publications Scientifiques
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Item The effect of atmospheric optical phenomena photographed by students on learning motivation(2018) Blizak, Meriem Djanette; Remli, S.; Blizak, SalahThe atmospheric optical phenomena (mirages, rainbows, halos, blue sky, sunset …) that we can observe in everyday life are very interesting for stimulating the students’ curiosity. This study aimed to investigate the effect of atmospheric optical phenomena photographed by university students’ on their learning motivation in geometrical optics (GO). To achieve the aim of the study, an available sample of the study composed of (200) students from the biology department of Boumerdes University, Algeria, was used. The subjects were randomly distributed into two groups: (165) of them in the experimental group and (35) in the control group. We have asked every student in the experimental group to use their smartphone or tablet to taking photos of an atmospheric optical phenomena and giving a physical explain. According to the motivation post and pres test, there were statistical significant differences in learning motivation in the favor of the experimental groupItem The effect of using the history of sciences on conceptual understanding and intrinsic motivation(2017) Blizak, Meriem DjanetteThis study investigates the effect of using the history of science in teaching geometrical optics on the motivation and conceptual understanding of first year university students. For this purpose, 54 students were randomly selected, then divided into two groups: the experimental group was taught by using history of science before traditional geometrical optics teaching, and the control group was taught by traditional method only. Data were collected using two instruments: Geometrical Optics Understanding Concept Test and Geometrical Optics Intrinsic Motivation Scale. The finding showed that before instruction, the students have important and prevalent misconceptions about vision, propagation of light and refraction. After teaching of geometrical optics, the study shows that using the history of science shows greater effect on intrinsic motivation and concept understanding. The results have some implications for teaching physics, especially when the traditional teaching is inevitableItem What thinks the university's students about propagation of light in the vacuum?(2013) Blizak, Meriem Djanette; Chafiqi, Fouad; Kendil, DjamelThis study aims to study the conceptions of university students related to the notion of propagation of light in a vacuum. In order to fulfill our aim, a case study research method was used in the study, whose sample consisted of 321 Algerian undergraduates in different levels at science faculty (before and after the optics courses). The data were collected through a test comprising three questions. The results have indicated two students’ misconceptions concerning propagation of light in vacuum. The first one is that the light does not propagate in a vacuum. The second is that the light propagates according the horizontal direction (new misconception). The possible origins of these misconceptions are discussed and suggestions for how to prevent them are given. Also, our results suggest that university students who had a higher level of physics knowledge than their counterparts who studied only geometrical optics, they still held of the same misconceptions. Formal or traditional teaching seems helpless to facing these misconceptionsItem Students misconceptions about light in Algeria(2009) Blizak, Meriem Djanette; Chafiqi, Fouad; Kendil, DjamelPhysics education research has shown that students have difficulties in learning essential optics concepts. Therefore, in this present work we deal with student’s conceptions in geometrical optics field. Our objective is to show the Algerian students misconceptions. We proposed to 246 students in first year university (aged 18–21) a closed questionnaire where most of its questions were already used by other researchers. The misunderstandings identified were compared with those in literature. The results show that our students have the same misconceptions, related to the propagation of the light, the vision, the refraction and the reflexion, as the students in other countries (Andersson, Çiğdem ŞAHİN, Galili, Goldberg, Viennot,…). We investigate new students “misconception” concerning the propagation of the light in the vacuum