Seventh Grade Students Mathematical Thinking And Representations İn Model Eliciting Activities - Lesh Richard; Umay Aysun; Türker Biber Belma; Özyıldırım Gümüş Feride; İspir Akkuş Oylum; Alkaş Ulusoy Çiğdem; Yetkin Özdemir İffet Elif; Şengil Akar Şeyma; Kayhan Altay Mesture; Ay Zeynep Sonay (My University, 2011)