An Examination of the Achievement Levels of Acquisitions in Hybridization: High School Sample

Sevgül Çalış

doi:10.13189/ujer.2018.060805

Abstract

In this study with high school students, a descriptive scanning model, one of the qualitative research methods, was used to determine the extent to which the achievements of the hybridization occurred. The study was conducted with 12th grade students studying in a public high school in Bursa in 2017-2018 academic year. According to the findings obtained from the research, it was determined that most of the high school students had difficulty in explaining the formation of single, double and triple bonds using atomic and hybrid orbital knowledge and expressing it verbally and schematically. It has also been found that students have problems in identifying the hybridization type which the central atom in the given organic compound undergoes. For this reason, it has been concluded that it is important to explain hybrids in detail at a high school level, taking advantage of teaching techniques and materials, paying attention to visuality during teaching and exploiting three-dimensional models.

Highlights

When the achievements of hybridization are examined under the secondary education chemistry program, students are required to understand the hybrid orbitals and atomic orbitals and explain the formation of single, double and triple bonds
In analyzing the first question for the concept of defining hybridization, student answers were examined one by one and the results given in Table 1 below were obtained
The following are examples of answers given by students participating in the survey on the definition of the concept of hybridization

Summary

Introduction

When the achievements of hybridization are examined under the secondary education chemistry program, students are required to understand the hybrid orbitals and atomic orbitals and explain the formation of single, double and triple bonds. They are expected to determine the hybridization pattern of the central atoms of molecules with different geometries. The s, p and d atomic orbitals and hybrid orbitals, which are different mathematical mixtures of these orbits, need to be well known so that chemical bonds can be well explained, and more meaningful and effective learning can be achieved [10]. A few researchers have studied the difficulties that students have had in learning hybridization and the misconceptions of this subject [11,12,13,14,15]

Objectives

Results

Conclusion