تصورات التلاميذ لمفهوم التفاعل الكيميائي في بدايات تعليمه بالجزائر
This research aims to determine students' perceptions about some chemical concepts related to learning the concept of chemical reaction in its early stages of intermediate education in Algeria. To achieve this goal, the descriptive approach was used, as the study sample was selected from the average third year students for the school year 2021-2022, numbering 120 male and female students. The study tool consisted of conducting a test to reveal some of the students' difficulties and perceptions about some chemical concepts such as fusion and dissolution, chemical and physical transformations, chemical interaction and the laws of matter. It was found that there is confusion among many students about the concept of fusion and dissolution. Some students are still unable to distinguish between chemical transformation and physical transformation of some unusual transformations. Most students also have difficulty linking what is happening at the microscopic and symbolic level to the macroscopic. (Published abstract)