Evaluation of screencasts settings applied to CAD online teaching

Screencasts are video recording techniques that capture dynamic images of the computer screen. Besides that, the screen recordings are combined with audio or subtitles instructions. Originally, screencasts were developed to produce videos that aim to teach instructional content. The most frequent applications of screencasts are in videos about software tutorials. Due to these features, screencasts present potential to be employed in online classes of technical drawing, especially ones that apply Computer-Aided Design (CAD) software. However, it is fundamental to optimize the screencast settings that adjust to the teaching-learning process. This article aims to evaluate different screencasts settings, directed to technical drawing online teaching with AutoCAD. Three participants evaluated four different screencasts settings to find which settings are adequated for capturing the attention and the student video comprehension. As a result, the participants exposed their preference for screencasts with audio instructions due to the facility of assimilating the audio with the images simultaneously. Additionally, there were inconclusive aspects related to the instructor’s webcam application in screencasts. Thus, it is recommended deep investigation in the future.The authors are glad to Prorectorate for Outreach and Extension (PROEX) of Universidade Federal de Santa Catarina (UFSC), Brazil, which become available financial resources to the Group of Innovative Communication Technologies for Education in Technical Drawing for Engineering Courses (NTICEGEng). NTICEGEng organized the course Introduction to AutoCAD Screencasts to train professors in online teaching for CAD. Juliane Silva de Almeida is a Junior Lecturer of the Graphic Communication Department at UFSC, Brazil, since 2015 and the head of the NTICEGEng. She lectures technical drawing with CAD and descriptive geometry for engineering undergrads. NTICEGEng activities are focused on promoting outreach training courses about online teaching tools and techniques. Nicole Santini Baratto is a student of Civil Engineering undergrad at UFSC, Brazil, since 2018 and a junior researcher at NTICEGEng. 64