The development of chemistry concept in 7th grade and 11th grade: A cross-age study

The purpose of this cross-age study is to determine that whether the development of the chemistry concept throughout history has similarities with the students’ conceptual development of “chemistry” in different grades. The study was carried out with a cross-sectional research in the form of a case study. According to the findings, chemistry concept is constructed in students’ minds related to their grades. There is a direct relationship between the construction and the historical development of the concept. In order to overcome misconceptions about the “chemistry” concept and to teach it meaningfully concept mapping, prediction-observation-explanation, interviews about concepts, drawings, fortune lines, relational diagrams and word association techniques are suggested for teachers.