Aids and devices

The purpose of this proposed research study was to identify actual teaching practices/instructional strategies for online science courses. The identification of these teaching practices/instructional strategies could be used to compile a set of teaching practices/instructional strategies for virtual high school and online academy science instructors. This study could assist online science instructors by determining which teaching practices/instructional strategies were preferred for the online teaching environment. The literature reviewed the role of online and face-to-face instructional strategies, then discussed and elaborated on the science instructional strategies used by teachers, specifically at the secondary level. The current literature did not reflect an integration of these areas of study. Therefore, the connectedness of these two types of instructional strategies and the creation of a set of preferred instructional practices for online science instruction was deemed necessary. For the purpose of this study, the researcher designed a survey for face-to-face and online teachers to identify preferred teaching practices, instructional strategies, and types of technology used when teaching high school science students. The survey also requested demographic data information from the faculty members, including years of experience, subject(s) taught, and whether the teacher taught in a traditional classroom or online, to determine if any of those elements affect differences in faculty perceptions with regard to the questions under investigation. The findings from the current study added to the literature by demonstrating the differences and the similarities that exist between online and face-to-face instruction. Both forms of instruction tend to rely on student-centered approaches to teaching.

The purpose of this research was to identify if 1) there is a difference in student achievement between students who use the GeoLeg manipulative tool and students who use a traditional compass, protractor, and ruler on the same geometry unit; 2) there is a difference in student achievement between the genders between those who use the GeoLeg manipulative tool and those students who do not; and 3) there is a relationship between identified learning styles and student achievement on a geometry unit posttest after using the GeoLeg manipulative tool. There were 317 students in the study. The research found that students using the GeoLeg manipulative tool produced significantly better student performance on a posttest in this particular school setting. Although these results cannot be generalized to other school sites, it is plausible that these results could generalize to school sites whose demographics are similar. The research findings revealed that there was no statistically significant difference between male and female students within the treatment group. The significant finding is that the GeoLeg manipulative tool appears to work equally well with both genders. None of the learning styles, as identified by the Honey and Mumford Learning Styles Questionnaire, were correlated with student posttest score achievement on the tested geometry unit. In addition, there was no evidence to suggest that a student's learning style moderates the effectiveness of the use of the GeoLeg manipulative tool. There is no evidence to suggest that the effectiveness of the GeoLeg manipulative tool is any different depending upon the student's gender or learning style. The results of this research provide strong support for the use of the GeoLeg manipulative tool for improving student performance. Further research is needed to confirm these results in similar and different populations.

Tinnitus is a conscious perception of phantom sounds in the absence of external acoustic stimuli, and masking is one of the popular ways to treat it. Due to the variation in the perceived tinnitus sound from patient to patient, the usefulness of masking therapy cannot be generalized. Thus, it is important to first determine the feasibility of masking therapy on a particular patient, by quantifying the tinnitus sound, and then generate an appropriate masking signal. This paper aims to achieve this kind of individual profiling by developing interactive software -Tinnitus Analyzer, based on clinical approach. The developed software has been proposed to be used in place of traditional clinical methods and this software (as a part of the future work) will be implemented in the practical scenario involving real tinnitus patients.