ERIC Number: EJ1159672
Record Type: Journal
Publication Date: 2017-Jul
Pages: 4
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
The Sound and Feel of Titrations: A Smartphone Aid for Color-Blind and Visually Impaired Students
Bandyopadhyay, Subhajit; Rathod, Balraj B.
Journal of Chemical Education, v94 n7 p946-949 Jul 2017
An Android-based application has been developed to provide color-blind and visually impaired students a multisensory perception of color change observed in a titration. The application records and converts the color information into beep sounds and vibration pulses, which are generated by the smartphone. It uses a range threshold of hue and saturation coordinates of the HSV (hue, saturation, value) color space for detecting a color change specific to an indicator for, e.g., shades of pink for phenolphthalein-based titration, and informs the users before and upon attaining the end point. This approach can enable color-blind and visually impaired students to actively perform a fairly routine laboratory activity of titration.
Descriptors: Visual Impairments, Color, Handheld Devices, Multisensory Learning, Sensory Aids, Laboratory Experiments, Science Activities, Chemistry, Computer Oriented Programs, Computer Uses in Education
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A