The Impact of the Yaker Model “CLM” on the Acquisition of Chemical Concepts by Third Intermediate Grade Female Students

Abstract

  The aim of this research was determined by answering the following question: “The effect of Yacker’s model (CLM) on the acquisition of chemical concepts for third-grade female students in the middle school,” where the experimental method was adopted because it is the appropriate method for the research procedures and contexts from a scientific and practical perspective, as the two researcher used an experimental design with Partial control of two groups (experimental and control) in the research procedures, and the research community consisted of all female students in the third middle school year for the academic year (2023-2024) In the first Rusafa, and (Al-Rawnaq Middle School for Girls) was chosen, which includes (66) students to represent the research sample, chosen by the  researcher through a lottery. The paper section (A) as a control group reached (30) students after excluding the unmatched female students, and section (B) represented the experimental group which after the exclusion reached (30) students Thus, the two research samples were rewarded with several variables, including: an intelligence test, chronological age, previous achievement, and previous information. The items were prepared to test the acquisition of chemical concepts and their psychometric properties were obtained, and then a number of appropriate statistical methods and tools were used. After applying the post-acquisition test, the results were extracted. The two researcher reported results that indicate the progress of the experimental group taught using Yacker's model (CLM) over the control group taught in the usual way. The two researcher presented a series of proposals and recommendations related to research procedures.