Investigation of the opinions of hearing impaired students on digital teaching materials prepared on the decimal breaking operations

Abstract

The purpose of this research was to determine the opinions of hearing-impaired students about the digital teaching material prepared for subtraction, which requires decimal breaking. To achieve this goal, a digital teaching material that includes decimal breaking operations was developed. The case study method, a qualitative research method, was used to determine the opinions about the developed material. Four secondary school students, two primary school students, one secondary school mathematics teacher, and one primary school mathematics teacher participated in the study during the 2020-2021 academic years. Documents, interview forms, system records, observations, and video recordings were used as data collection tools to contribute to the research. The data obtained from the data collection tools were analyzed using the techniques commonly used in qualitative research, including content analysis and descriptive statistics. The results of the research showed that the developed digital teaching material has a positive impact on students' learning, the absence of distracting elements on the material reduces students' distraction, and students showed interest and success in using the material. The teachers' opinions supported the students' opinions and once again demonstrated the effectiveness of the digital teaching material in the education of hearing-impaired students.