تبیین مدلی برای تدریس مبحث ساده‌کردن عبارت‌های جبری در پایه هشتم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه آموزش ریاضی، دانشکده ریاضی و کامپیوتر، دانشگاه شهید باهنر کرمان

2 دانشیار بخش آموزش ریاضی، دانشکده ریاضی و کامپیوتر، دانشگاه شهید باهنر کرمان

چکیده

پژوهش حاضر با هدف طراحی مدلی مبتنی بر نظریه ساخت­وسازگرایی، برای تدریس مبحث ساده­کردن عبارت­های جبری و بررسی تأثیر آن بر یادگیری دانش­آموزان پایه هشتم انجام شد. روش این پژوهش ترکیبی بود؛ بدین ترتیب که برای تبیین مدل طراحی­شده، یک گروه کانونی در سه جلسه تشکیل شد و 15 معلم ریاضی داوطلب در یکی از شهرستان­های شرقی ایران، شرکت کردند. در بخش کمّی، 60 دانش­آموز پایه هشتم همان شهرستان به صورت نمونه­گیری تصادفی خوشه­ای انتخاب شدند و با توجه به طرح آزمایشی، به تصادف در دو گروه کنترل و آزمایش گمارده شدند. پس از گرفتن پیش­آزمون، به گروه آزمایش، مبتنی بر مدل آموزشیِ اعتباربخشی شده و به گروه کنترل، به روش سنتی تدریس شد و در پایان، داده­ها از طریق یک پس­آزمون جمع­آوری شدند. تجزیه و تحلیل داده­ها نشان داد که روش طراحی­شده مبتنی بر ساخت­وسازگرایی، مناسب­تر از روش­های سنتی بود و تأثیر مثبتی بر یادگیری دانش­آموزان پایه هشتم گذاشت.

کلیدواژه‌ها


عنوان مقاله [English]

Developing a Model based on Constructivism Approavh for Teaching Simplification of Algebraic Expressions in the 8th Grade

نویسندگان [English]

  • nooshin faramarzpoor 1
  • , Mohammad Reza Fadaee 2
1
2 Associate Professor of Department of Mathematics Education, Shahid Bahonar University of Kerman
چکیده [English]

The aim of the present study was developing a model based on constructivism approach, for teaching simplification of algebraic expressions in the 8th Grade. Mixed method proved to be suitable for the study. At the first phase, a primitive model was designed and a focus group was formed consisting of 15 volunteer mathematics teachers of the same grade and they met three times until the model was modified and validated for implementation. At the second phase, an experimental study was designed involving 60 Grade 8 students that randomely selected and assigned to two experimental and control groups. After taking the pre-test, the control group was taught as usual and the experimental group was taught using the developed model as treatment. At the end, a post- test was carried out for both groups. The results showed that the difference between two groups was statistically significant in the favor of the experimental group that indicates that posivie effectiveness of the developed model on the students’ performance in Grade 8.

کلیدواژه‌ها [English]

  • Constructivism
  • simplification of algebraic experessions
  • Mixed Method
  • Grade 8 Students
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