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(1 - 3 of 3)
- Title
- Teaching Fractions Procedurally and Conceptually to Pre-Service Elementary Education Teachers.
- Creator
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Edwards, Deborah, Hopp, Carolyn, Vitale, Thomas, Ortiz, Enrique, French, Jonathan, University of Central Florida
- Abstract / Description
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The purpose of this Dissertation in Practice was to inform pre-service elementary education teachers of conceptual and procedural methods for teaching fractions. The problem of practice began when the researcher noticed a deficiency in fraction addition knowledge for a remedial mathematics program at a local private university. Further exposure of fraction knowledge for the 2014 third-grade Florida Comprehensive Assessment Test scores at a local elementary charter school ascertained slightly...
Show moreThe purpose of this Dissertation in Practice was to inform pre-service elementary education teachers of conceptual and procedural methods for teaching fractions. The problem of practice began when the researcher noticed a deficiency in fraction addition knowledge for a remedial mathematics program at a local private university. Further exposure of fraction knowledge for the 2014 third-grade Florida Comprehensive Assessment Test scores at a local elementary charter school ascertained slightly above 50% of those students making a 70% percentile or higher. Now that Florida State Standards are aligned with the Common Core Standards, pre-service elementary teachers need to know how to teach fractions procedurally and conceptually. This research-based model was used to determine the level of fraction knowledge, math anxiety level, and present NCTM videos aligned with Common Core Standards. A key element of the model was the performance assessment of the participants teaching randomly selected fraction problems they had already encountered confirming the need for more professional development in this essential mathematics domain.
Show less - Date Issued
- 2015
- Identifier
- CFE0006215, ucf:51098
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006215
- Title
- Acoustic Ecology and Sound Mapping the University of Central Florida Main Campus.
- Creator
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Clarke, Robert, Beever, Jonathan, French, Scot, Janz, Bruce, Pijanowski, Bryan, University of Central Florida
- Abstract / Description
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(")Acoustic Ecology and Sound Mapping the University of Central Florida Main Campus(") explores the intersection of place and space, sound studies and acoustic ecology, visualization, and archives. The end result consists of a collection of (")soundwalk(") and stationary recordings conducted from 2016-2019 at the University of Central Florida (UCF) main campus in Orlando presented as an online Sound Map. This archive previously did not exist and provides a snapshot of the various sounds heard...
Show more(")Acoustic Ecology and Sound Mapping the University of Central Florida Main Campus(") explores the intersection of place and space, sound studies and acoustic ecology, visualization, and archives. The end result consists of a collection of (")soundwalk(") and stationary recordings conducted from 2016-2019 at the University of Central Florida (UCF) main campus in Orlando presented as an online Sound Map. This archive previously did not exist and provides a snapshot of the various sounds heard throughout the campus as well as a starting point and context for future research into this still-emerging field of acoustic ecology and sound studies. While the individual recordings help to provide a sense of place at the university, they also represent a benchmark from a public history standpoint to interpret sonic change over time.
Show less - Date Issued
- 2019
- Identifier
- CFE0007793, ucf:52344
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007793
- Title
- Mitigation of Motion Sickness Symptoms in 360(&)deg; Indirect Vision Systems.
- Creator
-
Quinn, Stephanie, Rinalducci, Edward, Hancock, Peter, Mouloua, Mustapha, French, Jonathan, Chen, Jessie, Kennedy, Robert, University of Central Florida
- Abstract / Description
-
The present research attempted to use display design as a means to mitigate the occurrence and severity of symptoms of motion sickness and increase performance due to reduced (")general effects(") in an uncoupled motion environment. Specifically, several visual display manipulations of a 360(&)deg; indirect vision system were implemented during a target detection task while participants were concurrently immersed in a motion simulator that mimicked off-road terrain which was completely...
Show moreThe present research attempted to use display design as a means to mitigate the occurrence and severity of symptoms of motion sickness and increase performance due to reduced (")general effects(") in an uncoupled motion environment. Specifically, several visual display manipulations of a 360(&)deg; indirect vision system were implemented during a target detection task while participants were concurrently immersed in a motion simulator that mimicked off-road terrain which was completely separate from the target detection route. Results of a multiple regression analysis determined that the Dual Banners display incorporating an artificial horizon (i.e., AH Dual Banners) and perceived attentional control significantly contributed to the outcome of total severity of motion sickness, as measured by the Simulator Sickness Questionnaire (SSQ). Altogether, 33.6% (adjusted) of the variability in Total Severity was predicted by the variables used in the model. Objective measures were assessed prior to, during and after uncoupled motion. These tests involved performance while immersed in the environment (i.e., target detection and situation awareness), as well as postural stability and cognitive and visual assessment tests (i.e., Grammatical Reasoning and Manikin) both before and after immersion. Response time to Grammatical Reasoning actually decreased after uncoupled motion. However, this was the only significant difference of all the performance measures. Assessment of subjective workload (as measured by NASA-TLX) determined that participants in Dual Banners display conditions had a significantly lower level of perceived physical demand than those with Completely Separated display designs. Further, perceived temporal demand was lower for participants exposed to conditions incorporating an artificial horizon. Subjective sickness (SSQ Total Severity, Nausea, Oculomotor and Disorientation) was evaluated using non-parametric tests and confirmed that the AH Dual Banners display had significantly lower Total Severity scores than the Completely Separated display with no artificial horizon (i.e., NoAH Completely Separated). Oculomotor scores were also significantly different for these two conditions, with lower scores associated with AH Dual Banners. The NoAH Completely Separated condition also had marginally higher oculomotor scores when compared to the Completely Separated display incorporating the artificial horizon (AH Completely Separated). There were no significant differences of sickness symptoms or severity (measured by self-assessment, postural stability, and cognitive and visual tests) between display designs 30- and 60-minutes post-exposure. Further, 30- and 60- minute post measures were not significantly different from baseline scores, suggesting that aftereffects were not present up to 60 minutes post-exposure. It was concluded that incorporating an artificial horizon onto the Dual Banners display will be beneficial in mitigating symptoms of motion sickness in manned ground vehicles using 360(&)deg; indirect vision systems. Screening for perceived attentional control will also be advantageous in situations where selection is possible. However, caution must be made in generalizing these results to missions under terrain or vehicle speed different than what is used for this study, as well as those that include a longer immersion time.
Show less - Date Issued
- 2013
- Identifier
- CFE0005047, ucf:49972
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005047
