scholarly journals Developing Chemistry Curriculum in Light of the Standards of life Applications and the Effectiveness of Teaching a Unit of the Developing Curriculum based on Format Model (4MAT) for Developing Mental Motivation and Chemical Awareness of Secondary Stage Students

2021 ◽  
Vol 7 (3) ◽  
pp. 119-136
Author(s):  
Mohamed Badr Mohamed Ismael ◽  
Prof. Safia M.A. Sallam ◽  
Prof. Nahed Abdel Radi Nobby ◽  
Dr. Mohamed Roshdy Mohamed
Keyword(s):  
Chemistry Curriculum ◽  
Secondary Stage

scholarly journals Integrating Sustainable Development Requirements into the Secondary Stage Chemistry Curriculum in Egypt

2019 ◽  
Vol 21 (2) ◽  
pp. 139-154
Author(s):  
Shaimaa Abdul Salam Abdul Salam Selim
Keyword(s):  
Sustainable Development ◽  
Secondary Education ◽  
Secondary School ◽  
Third Grade ◽  
Second Grade ◽  
Chemistry Curriculum ◽  
The Sustainable Development ◽  
The Third ◽  
School Year ◽  
Secondary Stage

Abstract The problem of the current research lies in the need to integrate some requirements of the sustainable development (SD) in secondary school chemistry curriculum. The research specifically seeks to answer the following question: What “requirements of sustainable development” should be taught in the secondary school chemistry curriculum in Egypt? To that end, the researcher analyzed the content of chemistry curricula in the three grades of secondary education in Egypt for the school year 2017–2018, and prepared a list of 57 SD requirements. It should be noted that fifteen requirements of sustainable development at the second-grade secondary stage were distributed into five units; the third unit included one requirement; the fourth unit comprised four requirements; and the fifth unit – one requirement. Regarding curriculum at the third-grade secondary stage, 17 requirements of sustainable development were integrated and distributed along five units.

Environmental Impact Evaluation of Istanbul Wastewater Treatment and Marine Disposal Systems

1992 ◽  
Vol 25 (9) ◽  
pp. 85-92 ◽  
Author(s):  
I. Ozturk ◽  
T. Zambal ◽  
A. Samsunlu ◽  
E. Göknel
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Environmental Impact ◽  
Quality Parameters ◽  
Sea Of Marmara ◽  
General Evaluation ◽  
Marine Outfall ◽  
Secondary Stage ◽  
Pre Treatment

Metropolitan Istanbul Wastewater Treatment System contains 14 marine outfalls, seven of which include secondary stage biological treatment processes. The others have only mechanical treatment units including bar screens and grit chambers. Only one mechanical pre-treatment and marine disposal system, Yenikapi plant, has been operated since 1988 among these 14 plants and six of them are ready for construction. In this paper, the environmental impact of Yenikapi pretreatment and marine disposal system on the water quality of the Bosphorus and the Sea of Marmara has been investigated. Long term water quality measurements which were performed in pre-and post-dischange applications have been evaluated. Water quality parameters including pH, DO, BODs, TKN, P and total coliforms were measured at various sampling stations around the discharge points. A general evaluation of marine outfall systems to be constructed in the scope of Istanbul wastewater treatment project, on the water quality of the Sea of Marmara and the Bosphorus has been presented.

Development and validation of an instrument for measuring Chinese chemistry teachers’ perceptions of pedagogical content knowledge for teaching chemistry core competencies

2021 ◽  
Author(s):  
Peng He ◽  
Changlong Zheng ◽  
Tingting Li
Keyword(s):  
Content Knowledge ◽  
Core Competencies ◽  
Chemistry Curriculum ◽  
Teaching Chemistry ◽  
Chemistry Teachers ◽  
Pedagogical Content ◽  
Teachers Perceptions ◽  
Knowledge For Teaching ◽  
New Instrument ◽  
Content Knowledge For Teaching

This study aims to develop and validate a new instrument for measuring chemistry teachers’ perceptions of Pedagogical Content Knowledge for teaching Chemistry Core Competencies (PCK_CCC) in the context of new Chinese chemistry curriculum reform. The five constructs and the initial 17 items in the new instrument were contextualized by the PCK pentagon model (Park S. and Oliver J. S., (2008), J. Res. Sci. Teach., 45(7), 812–834.) with the notions of the Senior High School Chemistry Curriculum Standards (Ministry of Education, P. R. China, 2017). 210 chemistry teachers from a University-Government-School initiative voluntarily participated in this study. The findings from item analysis, confirmatory factor analysis and correlation analysis provide sufficient empirical evidence to support the convergent and discriminant validity of the instrument. The concurrent validity of the instrument was confirmed by testing mean differences among teacher demographic groups. The high Cronbach's coefficient alpha values show good internal consistency reliability of the instrument. Integrating the evidence from theory and data, we documented a valid and reliable PCK_CCC instrument with five constructs consisting of 16 items. This study provides a thorough process for developing and validating instruments that address teacher perceptions of their PCK in a particular subject domain. The valid and reliable PCK_CCC instrument would be beneficial for teacher education researchers and teacher professional programs.

Catalyzing learning with green chemistry undergraduate research

2020 ◽  
Vol 5 (11) ◽  
Author(s):  
Lindsey A Welch
Keyword(s):  
Green Chemistry ◽  
Furfuryl Alcohol ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Ethyl Esters ◽  
Transfer Hydrogenation ◽  
Isopropyl Ether ◽  
Chemistry Curriculum ◽  
Undergraduate Chemistry ◽  
Chemistry Research

AbstractGreen chemistry and sustainability are important concepts to incorporate into the undergraduate chemistry curriculum. Through the development of innovative undergraduate chemistry research projects in these areas, retention of students in the physical sciences can be improved. This paper describes two projects in undergraduate catalysis research: hydrogenation of furfural and the esterification of biooil from pyrolyzed wood. Catalytic transfer hydrogenation (CTH) of furfural with Pd/C led to the production of furfuryl alcohol, furfuryl isopropyl ether, 2-methylfuran, and tetrahydrofurfuryl alcohol. The metal chloride additives improved selectivity for furfuryl alcohol and furfuryl isopropyl ether. Catalytic conversion of pyrolyzed wood biooil in ethanol with a solid acid catalyst yielded ethyl esters, including ethyl acetate and ethyl propionate, as characterized by GC/MS These projects are described in the context of engaging undergraduate students in hands-on research for the purpose of improving retention and persistence, as well as preparing young scientists to enter graduate programs and the STEM workforce.

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