The role of green chemistry activities in fostering secondary school students' understanding of acid–base concepts and argumentation skills

2016 ◽  
Vol 17 (4) ◽  
pp. 893-901 ◽  
Author(s):  
Mageswary Karpudewan ◽  
Wolff Michael Roth ◽  
Devananthini Sinniah

In a world where environmental degradation is taking on alarming levels, understanding, and acting to minimize, the individual environmental impact is an important goal for many science educators. In this study, a green chemistry curriculum—combining chemistry experiments with everyday, environmentally friendly substances with a student-centered approach that includes student–student discussion—was tested for its potential to increase the understanding of acid–base concepts and argumentative skills. A quasi-experimental design was chosen intended to take into account teacher/school nested effects. The study involved three classes of 150 16 year old Form Four students (1 experimental,N= 50; 2 control,N= 100) from two Schools A and B serving students from the same sociocultural and economic backgrounds taught by two teachers (Teacher A in School A taught 1 experimental and 1 control; Teacher B in School B taught 1 control). An ANCOVA with a pre-test as a covariate showed a statistically significant treatment effect as measured by an acid–base concept understanding test. Additionally, qualitative analysis of an Argumentation Skill Test (AST) shows that the experimental students used higher levels of argumentation skills following treatment than their peers in the two control classes. Implications are discussed for integrating green chemistry into the secondary school chemistry curriculum to teach the content on acid–base and green chemistry as a tool to assist the construction of arguments.

2021 ◽  
pp. 025576142110059
Author(s):  
Alican Gülle ◽  
Cenk Akay ◽  
Nezaket Bilge Uzun

Kodály-inspired pedagogy enables students to participate effectively in a music course by engaging in active musical interactions with folk songs and melodies. The purpose of this study was to explore the effects of Kodály-inspired pedagogy on recorder performance and attitudes toward music of secondary school students. A quasi-experimental design was used in the study. The experimental group was taught using Kodály-inspired pedagogy and the control group using the general music teaching methods for 9 weeks. A two-way mixed-design analysis of variance (ANOVA) and content analysis were used to analyze the data. A Recorder Performance Grading Key, music course attitude scale, and open-ended questions were used to collect the data. Consequently, the findings indicated that Kodály-inspired pedagogy had a significant effect on the students’ recorder performance but the researchers could not find a significant effect on students’ attitudes toward the music course. Moreover, students in the experimental group reported improvement in their recorder performance and attitudes toward music education. The researchers recommended including information about the implementation of Kodály-inspired pedagogy in music teacher textbooks, providing in-service training for teachers to enable them to use Kodály-inspired pedagogy.


Author(s):  
Fatih Dervent ◽  
Xiuye Xie ◽  
Erhan Devrilmez ◽  
Nazım Nayır ◽  
Weidong Li

Purpose: This study was to examine the effects of a curricular model named Situated Game Teaching through Set Plays (SGTSP) on secondary students’ tactical knowledge in a 10-lesson soccer unit. Methods: A quasi-experimental design with a repeated measure was used to examine the effectiveness of the SGTSP model in comparison with a technique-focused approach. Participants’ perceptions of SGTSP were collected through reflection journals throughout the unit. A convenient sample of 27 sixth graders from two classes participated in this study. Data were collected from a tactical knowledge test and reflection journals. A 3 × 2 × 2 factorial analysis of variance with a repeated measure was conducted to analyze the data. Responses to reflection journals were analyzed by deductive analysis and constant comparison. Results: Participants’ tactical knowledge in the SGTSP condition improved significantly more than those in the comparison condition over time. Conclusions: The findings provided evidence supporting the effectiveness of the SGTSP model on developing students’ tactical knowledge as compared to a technique-focused approach.


Land ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1306
Author(s):  
Hana Vavrouchová ◽  
Petra Fukalová ◽  
Hana Svobodová ◽  
Jan Oulehla ◽  
Pavla Pokorná

The paper presents the results of the study on participative mapping of landscape values and conflicts and a subsequent interpretation of the indicated localities from respondents’ point of view. The study focused on younger groups of landscape users—lower-secondary-school students (aged 11–15) and university students (aged 20–25)—in comparison with experts’ points of view. The research presumed that the perception of landscape values and issues are determined by age, level of education and by experience in the field. The study was conducted in the southeastern area of the Czech Republic (49° N, 16° E) via online data collection. Based on the obtained records, we conclude that, in terms of the typology of the valuable and problematic locations, the individual groups of respondents did not differ significantly and the selection of location types was similar across all groups. Lower-secondary-school students rather identified cultural values associated with everyday activities, and the descriptions contained emotional overtones. University students preferred natural values associated with formal values based on general consensus or conflicts associated with society-wide impacts. The experts base served as the benchmark for other groups.


2019 ◽  
Vol 1364 ◽  
pp. 012006
Author(s):  
M. Yustiqvar ◽  
G Gunawan ◽  
S Hadisaputra

2020 ◽  
Vol 15 (3) ◽  
pp. 291-317
Author(s):  
Marloes L. Nederhand ◽  
Huib K. Tabbers ◽  
Joran Jongerling ◽  
Remy M. J. P. Rikers

Abstract Grades provide students with information about their level of performance. However, grades may also make students more aware of how well they have estimated their performance, their so-called calibration accuracy. This longitudinal quasi-experimental study, set in secondary education, examined how to increase students’ awareness of the accuracy of their grade estimates in order to improve their calibration accuracy. During an entire school year, students from year 1, 2, and 3 provided grade estimates after each of their French exams. Subsequently, when students received their grades, the level of reflection support on their earlier estimates was manipulated. The first group of students just received their grade, the second group had to calculate the difference between their estimate and the actual grade, and the third group also had to reflect on reasons for a possible mismatch. We expected that more reflection support would lead to more improvement in calibration accuracy. Results showed that providing grade estimates already improved calibration accuracy over the school year, regardless of level of reflection support. This finding shows that asking for grade estimates is an easy-to-implement way to improve calibration accuracy of students in secondary education.


2008 ◽  
Vol 13 (1) ◽  
pp. 12-23 ◽  
Author(s):  
Katariina Salmela-Aro ◽  
Noona Kiuru ◽  
Minna Pietikäinen ◽  
Jukka Jokela

School burnout can be defined as consisting of exhaustion due to school demands, cynical, and detached attitude toward one’s school, and feelings of inadequacy as a student ( Kiuru, Aunola, Nurmi, Leskinen, & Salmela-Aro, 2008 ; Salmela-Aro & Näätänen, 2005 ; Schaufeli, Martínez, Pinto, Salanova, & Bakker, 2002 ). The first aim of the present study was to examine the extent to which schools differ in school-related burnout. Moreover, the aim was to examine the extent to which school-related and background factors are associated with school burnout at the school level and at the individual level. The participants were 58,657 students from 431 comprehensive schools and 29,515 students from 228 upper secondary schools who filled in a questionnaire measuring their school burnout, school-related variables (i.e., negative school climate, positive motivation received from teachers, support from the school), and background variables (i.e., gender, grade-point average, socio-economic status, and family structure). The results revealed only small differences between schools in school burnout. Among the comprehensive school students the results at the school-level showed that negative school climate typical of the school was positively related, while support from school shared among school members was negatively related to school-related burnout. Among upper secondary school students, in turn, positive motivation received from teachers typical of the school was negatively related to school-related burnout. At the individual level, negative school climate was positively related, and support from school and positive motivation received from teachers were negatively related to burnout among both the comprehensive and upper secondary school students. In addition, girls and those with lower GPA experienced higher levels of school burnout compared to boys and those with higher GPA.


2017 ◽  
Vol 7 (8) ◽  
pp. 608
Author(s):  
Dyah Christina Iswandari ◽  
Johannes Ananto Prayogo ◽  
Bambang Yudi Cahyono

This study aims at examining the effect of environmental problem-based learning (PBL) on the environment-related vocabulary mastery and writing ability of Indonesian EFL students. Previous studies showed that problem-based learning is a student-centered learning approach that affects students’ learning positively and significantly. This study employed a quasi-experimental design by involving two classes of senior high school students, each consisted of 30 students. One class was assigned to be the experimental group and treated with environmental PBL, while the other class was assigned to be the control group and taught conventionally. A vocabulary test was used to measure the students’ environment-related vocabulary mastery, while a hortatory writing test was used to examine the students’ writing ability. The data were analyzed by using independent sample t-test. The results of the study showed that the students who were taught by using environmental PBL improved their environment-related vocabulary mastery and their writing ability significantly. The PBL approach is then recommended for future teaching and research. Nevertheless, before implementing this approach, other teachers and future researchers should consider the readiness of the curriculum, the students, and the school infrastructure.


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