In the present article, the author looks into several influential questions that are too often given insufficient emphasis in the classroom teaching and the following conclusions are reached through the research： （1...In the present article, the author looks into several influential questions that are too often given insufficient emphasis in the classroom teaching and the following conclusions are reached through the research： （1） Classroom is a behavior setting where students of different characteristics come to bring about desirable changes. Different strategies must be used to meet their needs; （2） Teachers are not just transmitters of knowledge; they must be an educator as well as a helpful person; （3） Students should be encouraged to communicate with teachers and their peers to achieve a conducive classroom climate.展开更多
Large displays have become ubiquitous in our everyday lives, but these displays are designed for sighted people.This paper addresses the need for visually impaired people to access targets on large wall-mounted displa...Large displays have become ubiquitous in our everyday lives, but these displays are designed for sighted people.This paper addresses the need for visually impaired people to access targets on large wall-mounted displays. We developed an assistive interface which exploits mid-air gesture input and haptic feedback, and examined its potential for pointing and steering tasks in human computer interaction（HCI）. In two experiments, blind and blindfolded users performed target acquisition tasks using mid-air gestures and two different kinds of feedback（i.e., haptic feedback and audio feedback）. Our results show that participants perform faster in Fitts＇ law pointing tasks using the haptic feedback interface rather than the audio feedback interface. Furthermore, a regression analysis between movement time（MT） and the index of difficulty（ID）demonstrates that the Fitts＇ law model and the steering law model are both effective for the evaluation of assistive interfaces for the blind. Our work and findings will serve as an initial step to assist visually impaired people to easily access required information on large public displays using haptic interfaces.展开更多
文摘In the present article, the author looks into several influential questions that are too often given insufficient emphasis in the classroom teaching and the following conclusions are reached through the research： （1） Classroom is a behavior setting where students of different characteristics come to bring about desirable changes. Different strategies must be used to meet their needs; （2） Teachers are not just transmitters of knowledge; they must be an educator as well as a helpful person; （3） Students should be encouraged to communicate with teachers and their peers to achieve a conducive classroom climate.
基金partially supported by the National Natural Science Foundation of China under Grant No.61228206the Grant-in-Aid for Scientific Research of Japan under Grant Nos.23300048 and 25330241
文摘Large displays have become ubiquitous in our everyday lives, but these displays are designed for sighted people.This paper addresses the need for visually impaired people to access targets on large wall-mounted displays. We developed an assistive interface which exploits mid-air gesture input and haptic feedback, and examined its potential for pointing and steering tasks in human computer interaction（HCI）. In two experiments, blind and blindfolded users performed target acquisition tasks using mid-air gestures and two different kinds of feedback（i.e., haptic feedback and audio feedback）. Our results show that participants perform faster in Fitts＇ law pointing tasks using the haptic feedback interface rather than the audio feedback interface. Furthermore, a regression analysis between movement time（MT） and the index of difficulty（ID）demonstrates that the Fitts＇ law model and the steering law model are both effective for the evaluation of assistive interfaces for the blind. Our work and findings will serve as an initial step to assist visually impaired people to easily access required information on large public displays using haptic interfaces.
