Preferred Language
Articles
/
jperc-825
اثر تضمين البعد البيئي في تدريس الكيمياء في التحصيل الاني والمؤجل لطلاب المرحلة الثانوية
...Show More Authors

من الاهداف المهمة لتدريس الكيمياء في المرحلة الثانوية التعرف على الثروات الطبيعية وكيفية استغلالها والاستفادة منها (وزارة التربية والتعليم ,1970)ومن اهداف تدريس الكيمياء التي يشير اليها  المختصون ,مساعدة الفرد على التكيف الايجابي والناجح مع بيئة بما يحدث لمكوناتها مع تغير وما يدخل على بنيتها من عوامل مستجدة (كاظم ,1973) على ان يتم ذلك من خلال الشعور الايجابي لدى الافراد بدفعهم للاسهام في تطوير البيئة من حدود استعداداتهم وقدراتهم (وزارة التربية والتعليم ,1964) وينسجم هذا مع هدف التربية بعمامة التي تسعى لاعداد افراد متوافقين فيما بينهم بشكل عام (المنظمة العربية للتربية والثقافة والعلوم ,1977)

 

ملخص

اثر تضمين البعد البيئي في تدريس الكيمياء على التحصيل الاني والمؤجل لطلاب المرحلة الثانوية.هدف هذه الدراسة الى استقصاء اثر التضمين البيئي في تدريس الكيمياء على التحصيل وذلك بقصد الاجابة عن الاسئلة التالية :-

السؤال الاول:- هل هناك فرق ذو دلالة احصائية بين متوسطي مجموعتي الدراسة في التحصيل الاني يعزى لمنحى التدريس ؟

السؤال الثاني:- هل هناك فرق ذو دلالة احصائية بين متوسطات اداء الطلاب الاني يعزى لمستوى التحصيل ؟

 

السؤال الثالث:- هل يوجد فرق ذو دلالة احصائية بين متوسطات اداء الطلاب الاني يعزى للتفاعل بين منحنى التدريس و مستوى التحصيل ؟

السؤال الرابع:-  هل هناك فرق ذو دلالة احصائية بين متوسطي مجموعتي الدراسة في التحصيل المؤجل يعزى لمنحنى التدريس ؟

السؤال الخامس :- هل هناك فرق ذو دلالة احصائية بين متوسطات تحصيل الطلاب يعزى لمستوى التحصيل ؟

السؤال السادس :- هل يوجد فرق ذو دلالة احصائية بين متوسطات اداء الطلاب  المؤجل يعزى للتفاعل بين منحنى التدريس ومستوى التحصيل  ؟

شملت عينة الدراسة (84) طالبا من طلاب الصف الخامس العلمي في مدينة بغداد للعام الدراسي 2001- 2002 موزعين في شعبتين دراسيتين وتم تصنيف افراد مجموعتي الدراسة الى ذوي تحصيل مرتفع ومتوسط ومنخفض حسب متوسط علاماتهم في الفيزياء والكيمياء والاحياء في الفصل الاول 2001/2002 ثم قاما الباحثان بتدريس احد الشعبتين حسب المنحنى البيئي والاخرى حسب المنحنى التقليدي.

وقيس تحصيل الطلاب في هذه الدراسة باختبار تحصيلي من اعداد الباحثة.

استخدم تحليل التباين (3x2 )للاجابة عن اسئلة الدراسة عند مستوى الدلالة الاحصائية (0.05). واظهرت نتائج الدراسة وجود فرق ذات دلالة احصائية في كل من التحصيل الاني والمؤجل تعزى لمستوى التحصيل وعند اجراء المقارنات المتعددة نيومان كولز البعديه تبين وجود فروق ذات دلالة احصائية لصالح فئات التحصيل المرتفع . كما بينت نتائج الدراسة عدم وجود اثر التفاعل مابين مستوى التحصيل ومنحنى التدريس في كل من التحصيل الاني والمؤجل . وخلصت الدراسة الى التوصية بتطعيم البعد البيئي في محتوى المناهج القائمة في الكيمياء من خلال ربط التفاعلات الكيميائية بقضايا بيئية واجراء دراسات مماثلة في موضوعات اخرى في الكيمياء والعلوم بشكل خاص والمواضيع الاخرى بشكل عام .

 

View Publication Preview PDF
Quick Preview PDF
Publication Date
Mon Jun 01 2009
Journal Name
Al-khwarizmi Engineering Journal
Effect of Adding Alcohols and Gas Velocity on Gas Hold up and Mass Transfer Coefficient in Bubble Columns with Draught Tube
...Show More Authors

     The bubble columns are widely used as a two or three phase reactor in industrial chemical process such as absorption, biochemical reactions, coal liquefaction, etc. To design such a column, two main parameters should be taken in consideration, the gas hold-up (), and the liquid phase mass transfer coefficient KLa. The study includes the effect of gas velocity and the addition of alcohols on gas hold-up and mass transfer coefficient in bubble column with draught tube when the length of the column is 1.5m and the ratio of the draught tube diameter to the column diameter equals 0.5 and the air dispersion into the base of the draught tube using a multi hole tuyere is equivalent to a diameter of 0.15 mm and

... Show More
View Publication Preview PDF
Publication Date
Sat Oct 01 2022
Journal Name
Baghdad Science Journal
Toxicity of Nanomulsion of Castor Oil on the Fourth larval stage of Culex quinquefsciatus under Laboratory Conditions
...Show More Authors

Mosquitoes like Culex quinquefasciatus are the primary vector that transmits many causes of diseases such as filariasis, Japanese encephalitis, and West Nile virus, in many countries around the world. The development in the scientific fields, such as nanotechnology, leads to use this technique in control programs of insects including mosquitoes through the use of green synthesis of nanoemulsions based on plant products such as castor oil.  Castor oil nanoemulsion was formulated in various ratios comprising of castor oil, ethanol, tween 80, and deionized water by ultrasonication. Thermodynamic assay improved that the formula of (10 ml) of castor oil, ethanol (5ml), tween 80 (14 ml) and deionized water (71ml)   was mor

... Show More
View Publication Preview PDF
Scopus (8)
Crossref (3)
Scopus Clarivate Crossref
Publication Date
Mon Mar 15 2021
Journal Name
Al-academy
Making use of economical design techniques and materials in implementing cosmetic supplements to the interior spaces of the dwelling: رانيه علي احمد عبد الرحمن
...Show More Authors

  This research aims to identify the economic design techniques and materials that can be used in the implementation of cosmetic supplements to the spaces of the dwelling. The research relied on the descriptive and analytical approach by describing and analyzing models of design techniques and materials that can be used in the production of cosmetic supplements in the interior spaces of the dwelling.
The results of the research concluded that the beautification of the spaces of the dwelling is one of the necessary and important pieces to add aesthetic touches to the internal spaces, and that the use of economic design techniques and materials contributes to the implementation of many pieces of complementary beautification of the

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sat Feb 21 2026
Journal Name
Al–bahith Al–a'alami
SOCIAL MEDIA AND ITS ROLE IN THE PRODUCTION AND NUTRITION OF CRISES: "ANALYTICAL STUDY OF A SAMPLE OF TWITTER DURING THE GULF CRISIS 2017"
...Show More Authors

Social networking sites have become very popular since the beginning of the current decade and have become linked to our daily life. We follow the news, Analyses  and opinions on the one issue in a way that attracts millions of users and the number grows every secon On Twitter, one of the most important social networking sites, all social groups rushed from the president to the last citizen to open accounts when they found themselves forced to do so .

During the recent Gulf crisis, Twitter was buzzing with Twitter, which achieved the largest circulation globally. Instead of serving the issue and directing it to serve the Arab interest, most of the publications were on th

... Show More
View Publication Preview PDF
Crossref (1)
Crossref
Publication Date
Wed Feb 01 2023
Journal Name
Baghdad Science Journal
The Link between Serum Omentin Level and Insulin Resistance Biomarkers, Lipid Profile, and Atherogenic Indices in Iraqi Obese Patients.
...Show More Authors

Omentin (or intelectin) is a main visceral fat secretory adipokine.  There is a growing interest to link omentin, obesity and co-morbidity factors. The aim of the present study is to evaluate serum omentin and its association to insulin resistance biomarkers, lipid profile and atherogenic indies. This cross – sectional study was conducted in Obesity Research and Therapy Unit-Alkindy College of Medicine by recruiting (115) individuals; 49 males /66 females. Subjects between (20 to 60) years of age were selected and classified into two groups according to their Body mass index (BMI). Group1 involved healthy lean volunteers (25 male/ 36 female; BMI 18.5 - 24.9). Group2 involved obese subjects; (24 male / 36 female with BMI ≥ 30). The s

... Show More
View Publication Preview PDF
Scopus (8)
Crossref (3)
Scopus Clarivate Crossref
Publication Date
Sun Mar 15 2020
Journal Name
Al-academy
The Role of the Passive Conditioning in Achieving Thermal Comfort in Temporary Hotel Units: سماح محمد طالب الدويك-سامي أبوطالب-محمد صابر
...Show More Authors

This research is based on monitoring the local and environmental technologies in the design of the temporary hotel units (nomadic tents) in the desert in the south of Jordan in order to air condition them in summer and winter, maintaining the Jordanian identity, that they are presented with the form and technologies of the age in order to get to the universality.
The research adopted the descriptive analytical method and the researcher conducted the analysis of SWOT specified for the analysis of the positive and negative aspects in the design of the temporary hotel units and comparing them with the case studies available in the chosen research area "the Jordanian golden triangle", through the elements of the case under study. The res

... Show More
View Publication Preview PDF
Crossref
Publication Date
Tue Dec 01 2020
Journal Name
Baghdad Science Journal
A Competitive Study Using UV and Ozone with H2O2 in Treatment of Oily Wastewater
...Show More Authors

          In this study, ultraviolet (UV), ozone techniques with hydrogen peroxide oxidant were used to treat the wastewater which is produced from South Baghdad Power Station using lab-scale system. From UV-H2O2 experiments, it was shown that the optimum exposure time was 80 min. At this time, the highest removal percentages of oil, COD, and TOC were 84.69 %, 56.33 % and 50 % respectively. Effect of pH on the contaminants removing was studied in the range of (2-12). The best oil, COD, and TOC removal percentages (69.38 %, 70 % and 52 %) using H2O2/UV were at pH=12. H2O2/ozone experiments exhibited better performance compared to

... Show More
View Publication Preview PDF
Scopus (11)
Crossref (4)
Scopus Clarivate Crossref
Publication Date
Tue Sep 27 2022
Journal Name
Arab Science Heritage Journal
آل البيت ( عليهم السلام ) من خلال كتاب درر السمط في خبر السبط لابن الابار البلنسي الاندلسي ( ت658هـ/1260م)
...Show More Authors

One of them one of the important books due to its containing valuable information written by the author. Information include the life of the Messenger (Peace be upon him) before and during the mission and what happened to the messenger and his adherents and faithful companions (May Allah be pleased with them all)

View Publication Preview PDF
Crossref
Publication Date
Wed Jan 01 2014
Journal Name
Journal Of The College Of Basic Education
اسباب الضعف الاملائي لدى طلبة كلية الادارة والاقتصاد في جامعة بغداد وطرائق معالجتها من وجهة نظر التدريسيين والطلبة
...Show More Authors

Publication Date
Fri Jun 30 2017
Journal Name
Journal Of Madenat Alelem University College
دراسة خلايا البشرة والمعقدات الثغرية للسيقان والكساء السطحي لبعض المراتب من عائلة عرف الديك Juss. Amaranthaceae في العراق
...Show More Authors

Gompharena globosa L., Irisene herbistii Hook. ex Lindl. The results of this study showed that the anatomical characters of the stems epidermis and the indumentum covering different parts of the plant have an important anatomical characters such as the cell wall shape of ordinary epidermal cells also the shape and type of stomata, their presence in some taxa and abscent in others. The hairs also differentiated by their shapes and them types, either they glandular or eglandular also they are different in distribution between the different taxa or in the some taxon.