Nahar Lutfun, Sulaiman Riza, Jaafar Azizah
Institute of Visual Informatics, Universiti Kebangsaan Malaysia, UKM Bangi, Malaysia.
Assist Technol. 2022 Mar 4;34(2):157-169. doi: 10.1080/10400435.2020.1734112. Epub 2020 Mar 24.
Due to the lack of affordable assistive tools for learning mathematics, blind students in Bangladesh still use outdated learning tools like Tailor Frame.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.
由于缺乏经济实惠的数学学习辅助工具，孟加拉国的盲人学生仍在使用诸如裁缝框架之类的过时学习工具。因此，对低成本技术工具存在需求，该工具将帮助盲人学生更轻松地学习数学盲文和计算数字。为了提供一种有效且经济实惠的辅助工具，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。之后，提出了一种基于手机的交互式辅助应用程序，以使用Nemeth代码改善孟加拉国盲人学生的数学盲文学习设施。该应用程序的界面根据他们的需求进行设计。此外，盲人学生与现实世界的交互方式（如听觉和触觉）是设计提供自主学习设施的高度交互式界面的另一个标准。这些界面由教师、专家和最终用户进行评估，以确定其可用性。评估结果显示出对所设计应用程序可接受性的良好前景。因此，该应用程序有助于盲人学生使用Nemeth代码学习数学盲文。
