Purpose: Understanding the contribution of the use of proper language to thinking development and learning processes, served as the basis of this study. The purpose of this study is to learn from parents, teachers and teacher-trainees whether their view of efficient teaching also relies on the teacher's use of proper language.…

This article describes examples of reflection documented in a longitudinal research comprising two studies: a three-year three-stage study on technology project-based learning (TPBL) and a three-year two-stage study on engineering thinking (ET). Both studies used qualitative tools such as interviews, active observations, and document analysis.…