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بررسی کج فهمی های دانش آموزان پایه دهم درباره مفاهیم استوکیومتری و موازنه معادله های شیمیایی با روش ارزیابی مفهومی | ||
مطالعات آموزشی و آموزشگاهی | ||
مقاله 17، دوره 13، شماره 4 - شماره پیاپی 41، اسفند 1403، صفحه 317-337 اصل مقاله (681.17 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.48310/pma.2025.14587.4198 | ||
نویسندگان | ||
وحید امانی* 1؛ زکیه اکرمی2؛ مرتضی امیدوار3 | ||
1دانشیار، گروه آموزش شیمی، دانشگاه فرهنگیان، تهران، ایران | ||
2استادیار، گروه آموزش شیمی، دانشگاه فرهنگیان، تهران، ایران | ||
3دانشجوی کارشناسیارشد آموزش شیمی، گروه آموزش شیمی، دانشگاه فرهنگیان، تهران، ایران | ||
چکیده | ||
هدف از پژوهش حاضر بررسی کج فهمیهای دانش آموزان پایه دهم درباره مفاهیم استوکیومتری و موازنه واکنشهای شیمیایی است. 376 نفر (212 دختر و 164 پسر) از دانش آموزان پایه دهم مدارس استان مرکزی به روش نمونه گیری تصادفی از مدارس مختلف این استان انتخاب شدند. برای گردآوری اطلاعات از آزمون تشخیصی حاوی 8 سؤال چهار گزینه ای استفاده شده است. روایی آزمون توسط 9 نفر از اساتید و دبیران تأیید و با محاسبه ضریب آلفای کرونباخ به مقدار 0/805، پایایی سؤالات آزمون اثبات شد. روش ارزیابی مفهومی برای سنجش میزان درک دانش آموزان به کار رفته است. تحلیل داده ها با استفاده از نرم افزارIBM SPSS Statistics 26 انجام شد. نتایج نشان داد که 28/7 % و 25.8% دانش آموزان پایه دهم به ترتیب در مفاهیم استوکیومتری و موازنه دچار کج فهمی هستند. در مفهوم استوکیومتری بیشترین تصور غلط در زمینه استفاده از روابط استوکیومتری بهصورت متوالی و در مفهوم موازنه بیشترین باور اشتباه در زمینه انتخاب عنصر شروع کننده برای موازنۀ معادله واکنش شناسایی شد. بررسی تأثیر جنسیت بر میزان کج فهمی دانش آموزان درباره مفاهیم استوکیومتری و موازنه نشان داد تفاوت معناداری بین میانگین کج فهمی دانشآموزان دختر و پسر وجود ندارد. بر پایه یافتهها، بازبینی محتوای بخش استوکیومتری و موازنه کتاب درسی شیمی دهم و همچنین شیوه تدریس معلمان با دقت کافی و توجه ویژه پیشنهاد می شود. | ||
کلیدواژهها | ||
ارزیابی مفهومی؛ استوکیومتری؛ دانش آموزان پایه دهم؛ کجفهمی؛ موازنه معادله های شیمیایی | ||
عنوان مقاله [English] | ||
Investigation of misconception of 10th High School Students About the Concepts of Stoichiometry and Balancing of Chemical Equations Using Conceptual Evaluation Method | ||
نویسندگان [English] | ||
Vahid Amani1؛ Zakyeh Akrami2؛ Morteza Omidvar3 | ||
11Associate Professor, Department of Chemistry Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran | ||
22Assistant Professor, Department of Chemistry Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran | ||
3Master's Student in Chemistry Education, Department of Chemistry Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran | ||
چکیده [English] | ||
The aim of this research is to investigate the misconceptions that 10th grade students have about the concepts of stoichiometry and balancing chemical equations. We selected a total of 376 students (212 girls and 164 boys) from various schools in the Markazi province using random sampling. To collect information, we administered a diagnostic test consisting of 8 multiple-choice questions. The test's validity was confirmed by 9 professors and teachers, and its reliability was confirmed by calculating Cronbach's alpha coefficient, which yielded a value of 0.805. We used the conceptual evaluation method to assess students' understanding, and IBM SPSS Statistics 26 software for data analysis. The results revealed that 28.7% of 10th grade students have misconceptions about stoichiometry, while 25.8% have misconceptions about balancing chemical equations. Specifically, the most common misconception in stoichiometry was related to using stoichiometric relationships consecutively, while the most common misconception in balancing chemical equations was related to selecting the starting element for balancing the equation. Additionally, we examined the impact of gender on students' misconceptions and found that there was no significant difference between male and female students in terms of the average number of misconceptions. These findings suggest that revising content of stoichiometry and balancing. | ||
کلیدواژهها [English] | ||
Conceptual Evaluation, Stoichiometry, 10th Grade Students, Misconception, Balancing of Chemical Equations | ||
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آمار تعداد مشاهده مقاله: 113 تعداد دریافت فایل اصل مقاله: 38 |