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The Effect of a Laboratory-based, In-context, Constructivist Teaching Approach on Preservice Teachers' Science Knowledge and Teaching Efficacy.

Description: This study began with a concern about elementary teachers, as a whole, avoiding the teaching of science in the elementary classroom. The three main factors noted as reasons for this avoidance were: (1) minimum science requirements to reach certification, leading to a lack of preparedness; (2) lack of exposure to science in elementary school; and (3) general dislike for and understanding of science leading to a low self-efficacy in science teaching. The goal of the Environmental Science Lab for Elementary Educators (ESLEE) was to conduct an intervention. The intervention was lab-based and utilized in-context, constructivist approaches to positively influence participants' abilities to retain science content knowledge and to affect their belief in themselves as teachers. This intervention was created to respond to all three of the main avoidance factors noted above. The research utilized a quasi-experimental, pretest-posttest control group design. Two pretests and two posttests (science teaching efficacy and content knowledge) were given to all 1,100 environmental science lab students at the participating institution over two long semesters. Three experimental/control groups were formed from this population. The Experimental Group was comprised of 46 students who participated in the ESLEE Intervention. Control Group 1 was comprised of 232 self-described preservice educators (SDPEEs) in "regular" labs. Control Group 2 was comprised of 62 nonSDPEEs taught by ESLEE instructors in "regular" lab settings. A DM MANOVA was used to analyze the data. The results demonstrated that the ESLEE Intervention was statistically significant at the p> .05 level for science teaching efficacy between the Experimental Group and Control Group 1, and was statistically significant for both content knowledge and efficacy between the Experimental Group and Control Group 2. More notably, the effect size (delta) results ranged from .19 to .71 and .06 to .55 (partial eta squared) and demonstrated the practical significance of implementing ...
Date: May 2003
Creator: Thompson, Ruthanne
Partner: UNT Libraries

Demand Controlled Ventilation using CO2 Sensors in a Wireless Sensor Network [Poster]

Description: Poster presented as part of the 2013 Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project. This poster discusses research on demand controlled ventilation using CO₂ sensors in a wireless sensor network.
Date: 2013
Creator: Parsons, David; Jordan, Georgette; Li, Xinrong; Thompson, Ruthanne & Abraham, Sherin
Partner: UNT College of Engineering

Demand Controlled Ventilation using CO₂ Sensors in a Wireless Sensor Network

Description: This report discusses research on demand controlled ventilation using CO₂ sensors in a wireless sensor network. The focus of this research project was to investigate Indoor Air Quality (IAQ) monitoring technologies, government regulations and policies, and best practices to improve IAQ. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: 2013
Creator: Parsons, David; Jordan, Georgette; Li, Xinrong; Thompson, Ruthanne & Abraham, Sherin
Partner: UNT College of Engineering

Applications of wireless sensors in monitoring Indoor Air Quality in the classroom environment [Poster]

Description: This poster discusses applications of wireless sensors in monitoring indoor air quality in the classroom environment. The focus of this research project was to investigate Indoor Air Quality monitoring technologies, government regulations and policies, and best practices to improve IAQ.
Date: 2012
Creator: Chamberlain, Blaine; Jordan, Georgette; Li, Xinrong; Thompson, Ruthanne; Borkar, Chirag & Mansour, Sahar
Partner: UNT College of Engineering

Applications of wireless sensors in monitoring Indoor Air Quality in the classroom environment

Description: This report discusses research on applications of wireless sensors in monitoring Indoor Air Quality (IAQ) in the classroom environment. The research focuses on IAQ monitoring technologies, government regulations and policies, and best practices to improve IAQ. This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: 2012
Creator: Chamberlain, Blaine; Jordan, Georgette; Li, Xinrong; Thompson, Ruthanne; Borkar, Chirag & Mansour, Sahar
Partner: UNT College of Engineering

Indoor Air Quality: CO₂ Sensors and Demand Controlled Ventilation

Description: This presentation discusses research on indoor air quality (IAQ) and building a small IAQ control system using Arduino microcontroller board and micro gas sensors (CO2, O3, etc.). This research is part of Research Experiences for Teachers (RET) in Sensor Education, a National Science Foundation (NSF) funded grant project.
Date: July 28, 2013
Creator: Parsons, David; Jordan, Georgette; Cheggwidden, Dawn; Li, Xinrong; Thompson, Ruthanne & Abraham, Sherin
Partner: UNT College of Engineering