Learning In Deed: Service-Learning and Preservice Teacher Education

Progressive teacher education programs face a pair of daunting yet crucial tasks. New teachers must be prepared to function effectively in schools as they exist today. They also must be educated to take a leadership role in the improvement and restructuring of P-12 education to meet students’ and society’s needs more fully. Service-learning appears to have considerable potential as a method to achieve both these goals. The W.K. Kellogg Foundation believes that meaningful service to the community, combined with curriculum-based learning, builds stronger academic skills, encourages lifelong civic commitment, and improves workplace and personal development skills among youth. Educators lead students in directed reflection so that students connect what they are learning to the service performed, both personally and to the community. Well-designed and implemented service-learning activities address these goals successfully

Meteoroids and Meteor Storms: A Threat to Spacecraft

Robust system design is the best protection against meteoroid damage. Impacts by small meteoroids are common on satellite surfaces, but impacts by meteoroids large enough to damage well designed systems are very rare. Estimating the threat from the normal meteoroid environment is difficult. Estimates for the occasional "storm" are even more uncertain. Common sense precautions are in order for the 1999 Leonids, but wide-spread catastrophic damage is highly unlikely. Strong Leonid showers are also expected in 2000 and 2001, but these pose much less threat than 1999

Challenges and Strategies for Success With Service-Learning in Preservice Teacher Education

This study examined challenges to the use of service-learning in preservice teacher education and also strategies used to overcome those challenges. We surveyed 123 teacher educators, education deans, and state department of education service-learning coordinators to gain their perspective regarding challenges most critical to the use of service-learning in teacher education. We then interviewed 42 of the survey respondents to obtain detailed descriptions of specific strategies used to overcome challenges. Results indicate the most critical challenges relate to lack of time for teacher educators to plan and implement service-learning, an already overcrowded curriculum, and a lack of alignment of service-learning with faculty roles, rewards, and institutional priorities. Results include 155 specific strategies that address the most critical challenges as well as advice for teacher educators new to service-learning. The study provides evidence that teacher educators are able to devise and implement strategies that can surmount some of the barriers to the use of service-learning in preservice teacher education. It also provides a rich source of ideas to stimulate the thinking of teacher educators grappling with obstacles to the use of service-learning

Principles of Good Practice for Service-Learning in Preservice Teacher Education

The purpose of this document is to provide principles to guide the integration of service-learning into the preservice teacher education curriculum. The ten principles included here were developed by a group of over 80 teacher educators and service-learning practitioners from all regions of the U.S. who contributed their ideas and feedback in order to achieve consensus. (Contributors are listed in Appendix B). These principles of good practice can be used by teacher educators to design and assess their service-teaming activities, and by policy makers to guide decisions regarding resource allocation and program development

Service-learning in preservice teacher education

This national study was designed to gain an understanding of the status of service-learning in teacher education programs. Results indicate that service-learning is introduced to preservice teachers in the majority of teacher education institutions (59%), while 37% prepare their teacher candidates to use service-learning as a teaching method. Although service-learning exists in the language and curriculum of the majority of teacher education programs, it still resides largely on the periphery. The quality, depth, and integration of service-learning are very limited. Teacher educators need increased institutional support and a deeper understanding of service-learning theory and practice for it to become a more fully integrated component of teacher education

The Gem Infrasound Logger: A Lightweight, Low-Power, Low-Cost, Open-Source Infrasound Logger

Low-frequency acoustic waves (called infrasound) are used for monitoring atmospheric disturbances including nuclear tests, volcanoes, and other powerful phenomena. Brief but focused infrasound campaigns enable the study of a wide range of sites and phenomena at low cost and with few workers. However, the cost, weight, and general inconvenience of commercial data loggers has limited past infrasound campaigns. To solve this problem, I developed an Arduino-based infrasound logger (the Gem) with a fraction of the cost, weight, and installation time. The Gem has since been adopted by several institutions for infrasound recording at volcanoes, stratospheric balloons, and river rapids

Volcano Infrasound: Progress and Future Directions

Over the past two decades (2000–2020), volcano infrasound (acoustic waves with frequencies less than 20 Hz propagating in the atmosphere) has evolved from an area of academic research to a useful monitoring tool. As a result, infrasound is routinely used by volcano observatories around the world to detect, locate, and characterize volcanic activity. It is particularly useful in confirming subaerial activity and monitoring remote eruptions, and it has shown promise in forecasting paroxysmal activity at open-vent systems. Fundamental research on volcano infrasound is providing substantial new insights on eruption dynamics and volcanic processes and will continue to do so over the next decade. The increased availability of infrasound sensors will expand observations of varied eruption styles, and the associated increase in data volume will make machine learning workflows more feasible. More sophisticated modeling will be applied to examine infrasound source and propagation effects from local to global distances, leading to improved infrasound-derived estimates of eruption properties. Future work will use infrasound to detect, locate, and characterize moving flows, such as pyroclastic density currents, lahars, rockfalls, lava flows, and avalanches. Infrasound observations will be further integrated with other data streams, such as seismic, ground- and satellite-based thermal and visual imagery, geodetic, lightning, and gas data. The volcano infrasound community should continue efforts to make data and codes accessible and to improve diversity, equity, and inclusion in the field. In summary, the next decade of volcano infrasound research will continue to advance our understanding of complex volcano processes through increased data availability, sensor technologies, enhanced modeling capabilities, and novel data analysis methods that will improve hazard detection and mitigation

From AAHE\u27s Series on Service-Learning in the Disciplines, Teacher Education Volume

Progressive teacher educators face a pair of daunting yet crucial tasks. New teachers must be prepared to function successfully in schools as they exist today and also be educated to take a leadership role in the improvement and reculturing of K-12 education to more fully meet the needs of individual students and resolve societal problems. One approach that can address both these tasks is the integration of service-learning experiences into teacher preparation programs

Natural orbital environment definition guidelines for use in aerospace vehicle development

This document provides definitions of the natural near-Earth space environment suitable for use in the initial development/design phase of any space vehicle. The natural environment includes the neutral atmosphere, plasma, charged particle radiation, electromagnetic radiation (EMR), meteoroids, orbital debris, magnetic field, physical and thermal constants, and gravitational field. Communications and other unmanned satellites operate in geosynchronous-Earth orbit (GEO); therefore, some data are given for GEO, but emphasis is on altitudes from 200 km to 1000 km (low-Earth orbit (LEO)). This document does not cover the induced environment of other effects resulting from presence of the space vehicle. Manmade factors are included as part of the ambient natural environment; i.e., orbital debris and radio frequency (RF) noise generated on Earth, because they are not caused by the presence of the space vehicle but form part of the ambient environment that the space vehicle experiences

Turn-Taking and the Local Management of Conversation in a Highly Simultaneous Computer-Mediated Communication System

Ongoing inquiry in communication technology research includes the questions of whether and how users adapt communication to the relatively restricted codes provided by text-based computer-mediated communication (CMC). This study proposes that adaptations may be affected by the level of simultaneity in messaging that CMC systems afford users. This suggestion is examined through an analysis of the particular conversational management strategies afforded by a fully synchronous computer-mediated communication system in which message transmission is keystroke-by-keystroke. Conversation analyses performed on the transcript of a three-person online conversation suggest several conclusions: Despite the novelty of the system, the CMC users appropriated and adapted many techniques from face-to-face conversations for the local management of conversations, including turn taking, turn allocation, and explicit interruption management. At the time, turn exchange was accomplished by the use of overlapping intermittent talk followed by lengthy strategic pauses, rather than according to the “no gap, no overlap” ideal of spoken conversation. Overall, the computer-mediated exchanges appeared resilient to modality change, and users spontaneously and creatively employed both traditional and technical features of conversation management