Assistive Technology ( IF 2.170 ) Pub Date : 2020-03-24 , DOI: 10.1080/10400435.2020.1734112 Lutfun Nahar 1 , Riza Sulaiman 1 , Azizah Jaafar 1
ABSTRACT
Due to the lack of affordable assistive tools for learning mathematics, blind students in Bangladesh still use outdated learning tools like Tailor Frame. Therefore, demand for a low-cost technological tool is there that will help the blind students to learn math braille and calculate numbers more easily. To provide an effective and affordable assistive tool, this study begins with a needs assessment study to identify the basic needs of blind students in learning math braille and solving mathematical calculations. Afterward, a mobile phone based interactive assistive application is proposed to improve the learning facilities of math braille using Nemeth code for blind students in Bangladesh. Interfaces of the application are designed based on their needs. Besides, interaction methods (such as, hearing & touching) of blind students with the physical world were another criterion in designing very interactive interfaces that provide self-learning facilities. The interfaces are evaluated by the teachers, experts, and end users in order to identify the usability. The evaluation shows a promising result toward the acceptability of the designed application. Therefore, this application can be helpful for the blind students to learn math braille using Nemeth Code.
中文翻译:
帮助孟加拉国盲人学生的交互式数学盲文学习应用程序
摘要
由于缺乏负担得起的数学学习辅助工具,孟加拉国的盲人学生仍然使用像 Tailor Frame 这样过时的学习工具。因此,需要一种低成本的技术工具来帮助盲人学生学习数学盲文并更轻松地计算数字。为了提供有效且负担得起的辅助工具,本研究从需求评估研究开始,以确定盲人学生在学习数学盲文和解决数学计算方面的基本需求。随后,提出了一种基于手机的交互式辅助应用程序,以改善孟加拉国盲人学生使用 Nemeth 代码的数学盲文学习设施。应用程序的界面是根据他们的需要设计的。此外,交互方法(如听力和 盲人学生与物理世界的接触)是设计提供自学设施的交互式界面的另一个标准。界面由教师、专家和最终用户评估,以确定可用性。评估显示了对所设计应用程序的可接受性的有希望的结果。因此,此应用程序可以帮助盲人学生使用 Nemeth Code 学习数学盲文。