scholarly journals Teaching high-school students nanoscience and nanotechnology

2015 ◽  
Vol 3 (4) ◽  
pp. 501-511 ◽  
Author(s):  
Dimitris Stavrou ◽  
Emily Michailidi ◽  
Giannis Sgouros ◽  
Kyriaki Dimitriadi
Keyword(s):  
High School Students ◽  
Secondary Students ◽  
Scientific Literacy ◽  
Volume Ratio ◽  
Learning Sequence ◽  
School Students ◽  
Nanoscience And Nanotechnology ◽  
Color Changes ◽  
Size Dependent ◽  
Big Ideas

Science education research has recognized the potential of NanoScience and nanoTechnology (NST) due to its contribution to scientific literacy of future generations. Scholars have identified nine “Big Ideas” as important enough to teach in order to understand NST issues. Based on these “Big Ideas” a teaching learning sequence for lower secondary students has been developed focused on: Size and Scale, Tools and Instrumentation, Size-Dependent Properties and Science-Technology-Society. The teaching sequence was implemented in a class of 15 students of a lower secondary school (8th grade; aged 14-15). Seven meetings took place; each one lasting about ninety minutes. The course was structured as follows: 1. Introduction. 2. How small is a nanometer? 3. How can we “see” the nanoworld? 4. Size-dependent properties: Change of the surface area to volume ratio. 5. Explaining the behavior of different textiles (ranged from hydrophilic to hydrophobic) when absorbing water drops. 6. Explaining color changes in gold nanoparticles. 7. Risk assessment of nanotechnology. Data have been collected by questionnaires, interviews, students’ worksheets and field notes. The results seem to be encouraging for the teaching of NST issues even in lower levels of education.

Increasing Secondary Students’ Comprehension Through Explicit Attention to Narrative Text Structure

2021 ◽  
pp. 004005992110255
Author(s):  
Whitney Sommers Butler ◽  
Casey Hord ◽  
Susan Watts-Taffe
Keyword(s):  
Learning Disabilities ◽  
Reading Comprehension ◽  
High School Students ◽  
Reading Instruction ◽  
Secondary Students ◽  
Text Structure ◽  
Literacy Skills ◽  
Students With Learning Disabilities ◽  
Narrative Texts ◽  
School Students

In spite of the prevailing assumption that formal reading instruction is no longer needed once adolescents reach high school, students at the secondary level still benefit from explicit reading instruction to continue developing advanced literacy skills enabling them to access complex narrative texts. This article argues for the importance of teachers to scrutinize the texts they plan to teach to determine what instruction and supports are needed to promote reading comprehension for students with learning disabilities. Specifically, this article examines how nonlinear text structures can challenge adolescent reading comprehension and illustrates explicit text structure instruction with three exemplar texts which use unconventional narrative patterns. The article emphasizes the importance of considering the qualitative features of texts to inform instruction to support reading comprehension for students with learning disabilities.

Tunisian High School Students and Digital Media Literacy: A Quantitative Study

2021 ◽  
pp. 002205742110259
Author(s):  
Tarak Dridi
Keyword(s):  
High School ◽  
High School Students ◽  
Digital Media ◽  
Secondary Students ◽  
Media Literacy ◽  
Quantitative Study ◽  
School Students ◽  
Information And Communication ◽  
Digital Media Literacy ◽  
The Impact

Digital media literacy has become an intrinsic component in shaping high school students’ knowledge acquisition and critical thoughts. Over the last two decades, internet and computers have been the implemented tools to reach such goals and promote the students’ learning. This article looks for the impact of Information and Communication Technology (ICT) on Tunisian secondary school students by detecting their technical skills as well as their critical understanding. This quantitative study relies on a self-reporting approach and targets 150 Tunisian secondary students. It proves the necessary consideration of technological and social variables in helping sort out major digital handicaps related to secondary students and displays the interconnectedness between the different dimensions of digital media literacy. It also displays that Tunisian high school students cannot be referred to as digital-media literate people. The study contributes to the field of digital media literacy as it offers a solid empirical background to build on and indicates the necessity of integrating digital media literacy into the school-based initiatives.

Determination of Gender Differential Item Functioning in Tegal Students' Scientific Literacy Skills with Integrated Science (SLiSIS) Test Using Rasch Model

2021 ◽  
Vol 10 (2) ◽  
pp. 270-281
Author(s):  
P. Susongko ◽  
Y. Arfiani ◽  
M. Kusuma
Keyword(s):  
High School Students ◽  
Construct Validity ◽  
Differential Item Functioning ◽  
Rasch Model ◽  
Scientific Literacy ◽  
Wald Test ◽  
Literacy Skills ◽  
School Students ◽  
Integrated Science ◽  
Item Functioning

The emergence of Differential Item Functioning (DIF) indicates an external bias in an item. This study aims to identify items at scientific literacy skills with integrated science (SLiSIS) test that experience DIF based on gender. Moreover, it is analyzed the emergence of DIF, especially related to the test construct measured, and concluded on how far the validity of the SLiSIS test from the construct validity of consequential type. The study was conducted with a quantitative approach by using a survey or non-experimental methods. The samples of this study were the responses of the SLiSIS test taken from 310 eleventh-grade high school students in the science program from SMA 2 and SMA 3 Tegal. The DIF analysis technique used Wald Test with the Rasch model. From the findings, eight items contained DIF in a 95 % level of trust. In 99 % level of trust, three items contained DIF, items 1, 6, and 38 or 7%. The DIF is caused by differences in test-takers ability following the measured construct, so it is not a test bias. Thus, the emergence of DIF on SLiSIS test items does not threaten the construct validity of the consequential type.

scholarly journals The prevailing social control methods and their relation to the level of ambition among high school students: أساليب الضبط الاجتماعي السائدة وعلاقتها بمستوى الطموح لدى طلبة المرحلة الثانوية

2017 ◽  
Vol 1 (4) ◽  
Author(s):  
Sabah Saleh Al-Shajrawi
Keyword(s):  
High School Students ◽  
Social Control ◽  
Secondary Students ◽  
Female Students ◽  
Control Methods ◽  
School Students ◽  
Male And Female ◽  
The Social ◽  
Descriptive Approach ◽  
The Relationship

The study aimed to identify the relationship between the prevailing social control methods and the level of ambition among secondary students. The researcher used the descriptive descriptive approach. In order to achieve the objective of the study, the questionnaire was used to determine the validity and persistence of the social control methods, consisting of (47) items divided into two areas (the first area: the penalties and the second field: the rewards), prepared by the researcher (2005) The study sample consisted of (367) male and female students from the Fourth Directorate of Amman. The results of the study showed that the most common methods of social control used in the field of penalties are: to punish you for the offenses you have committed. In the area of ​​charges, "promote your good behavior in front of students in public." The results also showed that the level of ambition among students was high, ). The results also showed that there is no relationship between the methods of social control and the level of ambition among students. There are statistically significant differences in the methods of social control due to the gender variable. The differences were in favor of males in penalties and in favor of females in rewards. The level of ambition is attributed Variable sex; females in all dimensions of the study for the benefit.

scholarly journals The effect of using Different model of images in Augmented Reality on cognitive achievement development of high school students in Jazan in computer curriculum: أثر اختلاف نمط عرض مصورات الواقع المعزز في تنمية التحصيل المعرفي لطلاب الثانوية بمنطقة جازان في مادة الحاسب الآلي

2019 ◽  
Vol 3 (31) ◽  
Author(s):  
Yahya Rasheed Alameer
Keyword(s):  
High School Students ◽  
Augmented Reality ◽  
Secondary Students ◽  
Three Dimensional ◽  
Cognitive Achievement ◽  
Two Dimensional ◽  
School Students ◽  
Quasi Experimental ◽  
Image Models ◽  
Experimental Group

  The purpose of the research is to determine the effect of the difference in the mode of presentation of the enhanced reality models in the development of the cognitive achievement of secondary students in Jazan region in computer science, the researcher used quasi-experimental approach in comparing the 2D image models of Augmented reality to the first experimental group, and teaching the pattern of 3D image models of Augmented reality of the second experimental group, to ascertain the hypotheses of the research and to reveal the relationship between the independent variable and the dependent variable, the sample consisted of (60) students: (30) students in the first experimental group, which was studied using the two-dimensional Augmented Reality models, And (30) students in the second experimental group, which was studied using the pattern of Augmented Reality three-dimensional, the results showed that there were statistically significant differences at (α≤05.0) between the mean scores of the students of the first experimental groups studied using the two-dimensional Augmented Reality models, the second experiment, which was studied using the Augmented three-dimensional image models, in the post-application to test cognitive achievement, for the second experimental group studied using the three-dimensional Augmented Reality models, In the light of the results, recommendations and suggestions were made to develop the cognitive achievement of secondary students in computer and various subjects.    

scholarly journals FAIRS OF SCIENCE AS ENCOURAGEMENT TO THE DEVELOPMENT OF ENVIRONMENTAL PERCEPTION OF ELEMENTARY AND HIGH SCHOOL STUDENTS

2016 ◽  
Vol 4 ◽  
pp. 299
Author(s):  
Mauro Silva Ruiz ◽  
Cristiano Capellani Quaresma ◽  
Ayron Barbosa dos Santos ◽  
Igor Ogashawara ◽  
Maurício Lamano Ferreira ◽  
...  
Keyword(s):  
High School Students ◽  
Secondary Students ◽  
Quantitative Research ◽  
Environmental Problems ◽  
Environmental Perception ◽  
School Students ◽  
Science And Engineering ◽  
Raising Awareness ◽  
Definition Of ◽  
Brazilian Science

The definition of environment, which disregard the changes resulting from historical progressive rupture of man in relation to his surroundings, is one of the conceptual errors that hinder the understanding and solution of environmental problems of the present. Such difficulties are deepened by the extreme specialization of knowledge that undermined the understanding of environmental problems, making critical analysis urgent and able to integrate different areas of knowledge. Science and technology fairs can be seen as important initiatives to this integration. Thus, this study aimed to verify the perception of students participating in Febrace (Brazilian Science and Engineering Fair) in relation to the environment and the impacts of this fair in raising awareness about that issue. This is a quali-quantitative research based on bibliographic and documentary surveys and interviews with primary and secondary students who were responsible for the projects presented in that fair. The results showed that the majority of respondents (over 74%) have a more elaborate and globalizing vision of the concept of environment. It was also found that, in general, interviewed students could observe positive influences of the fair on their environmental perception and felt more interested and motivated to understand and discuss environmental problems.

scholarly journals CARASTERÍSTICAS DE LOS INTERESES VOCACIONALES EN ALUMNOS DE EDUCACIÓN SECUNDARIA EVALUADOS A TRAVÉS DEL EXPLORA

2016 ◽  
Vol 3 (1) ◽  
pp. 549
Author(s):  
José Manuel Martínez Vicente ◽  
Isabel María Ángeles Segura
Keyword(s):  
High School ◽  
High School Students ◽  
Secondary Students ◽  
Current View ◽  
Vocational Counseling ◽  
School Students ◽  
Marked Preference ◽  
Toma De Decisiones ◽  
Las Mujeres ◽  
A Current

Abstract:The evaluation of vocational and professional interests is considered one of the important aspects in education secondary students for their future decision making. Thus, the objective of this study is to have a current view of how they are configured vocational and professional interests in secondary students in Spain. This Questionnaire for Vocational and Professional EXPLORE (Martinez-Vicente & Santamaría, 2013) to a sample of 3123 high school students and high school applied. The results obtained indicate that there are sex differences in the elections. While women marked preference for Social - Welfare - Artistic and Creative fields in the two men chosen fields are the Technical and Business -Owner - Persuasiavo. In the analysis of the indices of consistency and differentiation women are more consistent than men and differentiation is also higher for them.Keywords: Behavior vocational, vocational choice, vocational and professional interests, Vocational Counseling, Skills, Personality, Self-efficacy.Resumen:La evaluación de los intereses vocacionales y profesionales se considera uno de los aspectos importante en alumnos de educación Secundaria de cara a su futura toma de decisiones. Así pues, el objetivo del presente estudio es tener una visión actual de cómo están configurados los intereses vocacionales y profesionales en alumnos de educación secundaria en España. Para ello se aplicó el Cuestionario para la Orientación Vocacional y Profesional EXPLORA (Martínez-Vicente y Santamaría, 2013) a una muestra de 3123 alumnos de secundaria y Bachillerato. Los resultados obtenidos permiten concluir que existen diferencias de sexo en las elecciones. Mientras que las mujeres marcan preferencia por los campos Social-Asistencial y Artistico-Creativo, en los hombres los dos campos más elegidos son el Técnico-Manual y el Empresarial-Persuasivo. En los análisis de los índices de consistencia y diferenciación las mujeres son más consistentes que los hombres y la diferenciación también es mayor a favor de ellas.Palabras claves: Conducta vocacional, Elección vocacional, Intereses vocacionales y profesionales, Asesoramiento vocacional, Habilidades, Personalidad, Autoeficacia.

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