@article{girit_yildiz2019_398815,
author={dilek girit yildiz and Didem Akyüz},
title={Examining Two Middle School Mathematics Teachers’ Knowledge for Teaching Manipulation of Algebraic Expressions during Lesson Planning and Instruction},
year={2019},
journal={Türk Bilgisayar ve Matematik Eğitimi Dergisi},
issn={1309-4653},
volume={10},
number={3},
url={http://search/yayin/detay/398815}
}