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Physical Sciences and Mathematics Commons™
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Articles 3181 - 3210 of 6762
Full-Text Articles in Physical Sciences and Mathematics
Benefits Of A Comprehensive Undergraduate Teaching Assistant Program, Christopher Goff, Brigitte Lahme
Benefits Of A Comprehensive Undergraduate Teaching Assistant Program, Christopher Goff, Brigitte Lahme
Christopher Goff
Deductive Mathematics: An Introduction To Proof And Discovery For Mathematics Education, Andrew Wohlgemuth
Deductive Mathematics: An Introduction To Proof And Discovery For Mathematics Education, Andrew Wohlgemuth
Mathematics and Statistics Faculty Scholarship
Mathematics has two fundamental aspects: (1) discovery/logical deduction and (2) description/ computation. Discovery/deductive mathematics asks the questions:
1. What is true about this thing being studied?
2. How do we know it is true?
On the other hand, descriptive/computational mathematics asks questions of the type:
3. What is the particular number, function, and so on, that satisfies ... ?
4. How can we find the number, function, and so on?
In descriptive/computational mathematics, some pictorial, physical, or business situation is described mathematically, and then computational techniques are applied to the mathematical description, in order to find values of interest. The …
Oregon Collaborative For Excellence In The Preparation Of Teachers – An Overview, M. Enneking
Oregon Collaborative For Excellence In The Preparation Of Teachers – An Overview, M. Enneking
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Peer-Led Team Learning In Introductory Biology And Chemistry Courses: A Parallel Approach, A. Tenney, B. Houck
Peer-Led Team Learning In Introductory Biology And Chemistry Courses: A Parallel Approach, A. Tenney, B. Houck
Journal of Mathematics and Science: Collaborative Explorations
Peer-Led Team Learning has been in use in Introductory Biology and Introductory Chemistry since Fall 1999 at the University of Portland. lts effect on improved conceptual understanding, retention of students, and improvement in study skills will be discussed. An ancillary, but no less important benefit in the development of interest in science teaching among the peer leaders, is also addressed.
Journal Of Mathematics And Science: Collaborative Explorations
Journal Of Mathematics And Science: Collaborative Explorations
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
The Development Of Instruments For Assessment Of Instructional Practices In Standards-Based Teaching, C. L. Wainwright, L. Flick, P. Morrell
The Development Of Instruments For Assessment Of Instructional Practices In Standards-Based Teaching, C. L. Wainwright, L. Flick, P. Morrell
Journal of Mathematics and Science: Collaborative Explorations
We provide a description and rationale for the development of two instruments: 1) a classroom observation protocol; and, 2) a teacher interview protocol—designed to document the impact of reform-based professional development with undergraduate mathematics and science faculty, and its impact on the resultant preparation of teachers. Constructed upon review of the research on teaching and standards documents in mathematics and science, these instruments form the basis for data collection in a three-year longitudinal study of teaching practice among early career teachers as well as undergraduate college faculty. In addition, we suggest further applications of the observation protocol beyond the original …
A Descriptive Comparison Of One University Instructor's Instruction During Pre-Service Mathematics Courses And The Subsequent Mathematics And Science Instruction Of Three Of His Students During Their Student Teaching Experience, S. Blair
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Lessons Learned From Efforts At Institutional Change: Case Studies Of Six Ocept Institutions, T. G. Chenoweth, M. K. Kinnick, R. D. Walleri
Lessons Learned From Efforts At Institutional Change: Case Studies Of Six Ocept Institutions, T. G. Chenoweth, M. K. Kinnick, R. D. Walleri
Journal of Mathematics and Science: Collaborative Explorations
As one part of a multifaceted evaluation of the Oregon Collaborative for Excellence in the Preparation of Teachers (OCEPT), a case study approach was used to enable a deeper understanding of how a diverse group of six institutions attempted to achieve OCEPT goals and to learn more about factors that facilitated or hindered their efforts. Multiple sources of data were used, with heavy reliance on a series of on-site interviews. The analytical framework included a "depth" and "pervasiveness" typology of institutional change and a view of change as encompassing "meaning," "organization," and "effects." While goals and accomplishment levels, as well …
Geosciences For Elementary Educators: A Course Assessment, M. L. Cummings, M. Goodrich, D. Burmester
Geosciences For Elementary Educators: A Course Assessment, M. L. Cummings, M. Goodrich, D. Burmester
Journal of Mathematics and Science: Collaborative Explorations
Geosciences for Elementary Educators engages future elementary teachers in a hands-on investigation of topics aligned with the third and fifth grade Earth/Space Science and Scientific Inquiry benchmarks of the Oregon Content Standards. The course was designed to develop the content background of elementary teachers within the framework of the science described in the content standards, to provide an opportunity for future teachers to explore the content area in relation to what takes place in the classrooms of elementary schools, and to initiate a community of learners focused on teaching science to elementary students. The course focused on four themes: the …
Methods Of Smile: A Science Seminar Course In "Deliberate Education", E. Davis-Butts, R. Collay
Methods Of Smile: A Science Seminar Course In "Deliberate Education", E. Davis-Butts, R. Collay
Journal of Mathematics and Science: Collaborative Explorations
Oregon State University’s Science and Math Investigative Learning Experiences (SMILE) Program is an enrichment program for minority and underrepresented K-12 students. Through an eight-year iterative process, SMILE has developed and refined a science seminar course that allows undergraduate and master’s degree students to explore science enrichment for youth. Students enrolled in the course are engaged in teaching and learning as a community of learners with a focus on service learning. The intended audience for the course is those students who are interested in working in educational settings with youth—as classroom teachers, science/mathematics professionals engaged in precollege outreach, and the like. …
The Occurrence Of Reform Teaching Practice In Undergraduate Mathematics And Science Classes: The Students' Perspective, P. D. Morrell, J. B. Carroll
The Occurrence Of Reform Teaching Practice In Undergraduate Mathematics And Science Classes: The Students' Perspective, P. D. Morrell, J. B. Carroll
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Student Work Section, R. Howard
Student Work Section, R. Howard
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
The Perfect Perspective: A Mathematical Analysis Of Perspective Using Tools Available To Middle School Students, W. Griffin
Journal of Mathematics and Science: Collaborative Explorations
This paper examines the basic properties of perspective drawings, the history of perspective drawings, and the basic mathematics of perspective. Using a side view and a top view of a three-dimensional projection, similar triangles can be used to find distances from the axes and vanishing point in a projection. By breaking the three-dimensional projection into two, two-dimensional planes, one can recreate projections based on actual figures, or create placements of figures in real space based on a projection. Using this method, one 'can change a projection based on the changing position of the vanishing point. This simple approach to perspective …
Aims & Scope
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Contents
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
A Framework For Reproductive Models Of Mourning Doves, David L. Otis
A Framework For Reproductive Models Of Mourning Doves, David L. Otis
Journal of the Iowa Academy of Science: JIAS
Population models can be used to aid in development and evaluation of harvest management strategies for game species. No current models are available for the Mourning Dove (Zenaida macroura), which is considered a migratory game bird in 37 states. A predictive model for annual reproduction is a necessary component of such a model. I used a simple construct based on parameters of the Mourning Dove breeding cycle to develop probability distributions of annual per capita reproduction for each of five geographical regions in the U.S. Confidence intervals for model predictions included average estimates from published studies in all regions except …
An Assessment Of Water Quality In Ensign Hollow, Clayton And Fayette Counties, In Northeast Iowa, Rick Klann, Jaime Platts
An Assessment Of Water Quality In Ensign Hollow, Clayton And Fayette Counties, In Northeast Iowa, Rick Klann, Jaime Platts
Journal of the Iowa Academy of Science: JIAS
Water quality and benthic invertebrates in the Ensign Hollow watershed, southwestern Clayton County and southeastern Fayette County, Iowa, were monitored from 2000 to 2001. Measurements of physical and chemical parameters of water quality, as well as analysis of benthic invertebrates, all indicated that streams of the Ensign Hollow watershed were exposed to slight organic pollution. Furthermore, the greatest threat to this watershed appeared to be sedimentation introduced through runoff.
Cathodoluminescence As A Means For Distinguishing Hydrothermal From Pre-Hydrothermal Quartz In Sulfide-Bearing Mineral Deposits On The Northern Fringe Of The Upper Mississippi Valley Zinc-Lead District, Ne Iowa And Sw Wisconsin, Paul L. Garvin
Journal of the Iowa Academy of Science: JIAS
Sulfide-bearing mineral deposits, located on the northern fringe of the Upper Mississippi Valley Zinc-Lead District, are contained in early Ordovician carbonate rocks that are extensively silicified and dolomitized. Some silica and dolomite appear to be products of the hydrothermal processes that also formed fracture-filling and cavity-lining sulfides and other cogenetic minerals; other silica and dolomite appear to result from low-temperature, pre-hydrothermal regional diagenesis. Distinguishing hydrothermal quartz (jasperoid) from pre-hydrothermal quartz (chert) solely by hand specimen and thin section petrography is difficult because these two types of mineralization are often intimately associated with each other. Polished slabs from several of these …
Salt Tolerance Of Sunflower And Lettuce In Cultivated And Uncultivated Grass Soil, Steven H. Emerman, Emily M. Kinsinger
Salt Tolerance Of Sunflower And Lettuce In Cultivated And Uncultivated Grass Soil, Steven H. Emerman, Emily M. Kinsinger
Journal of the Iowa Academy of Science: JIAS
We tested two hypotheses: 1) whether a vegetable crop will show greater growth under a given salinity treatment in an uncultivated grass soil than a cultivated soil and 2), if so, whether the greater growth is due to the occasional presence of relatively fresh water in macropores or the interaction between salinity and hypoxia in a soil without significant macropores. A previous study suggested uptake from. macropores was significant only for crops with high root water potential (Emerman and Dawson 1997). Hence, in this study, 21 miniature crops were grown in a greenhouse, and the ratio of root dry weight …
Recent Observations Of The Distribution And Status Of Freckled Madtom And First Record Of Spotted Gar In Iowa, Melvin C. Bowler
Recent Observations Of The Distribution And Status Of Freckled Madtom And First Record Of Spotted Gar In Iowa, Melvin C. Bowler
Journal of the Iowa Academy of Science: JIAS
The distribution and status of Iowa's fishes were last extensively described in Iowa Fish and Fishing (Harlan et al. 1987). Since then, numerous fish collections have been made in Iowa's interior and bordering rivers and streams. In this paper, I describe recent collections of freckled mad tom (Noturus nocturnus) and spotted gar (Lepisosteus oculatus) from the Upper Mississippi. River (UMR). Six specimens of N. nocturnus were collected from Pool 13 of the UMR in 2001. Although the first documented specimens of N. nocturnus in Iowa were collected in the English River in 1984, few collections have been made throughout the …
Index For The Journal Of The Iowa Academy Of Science Volume 110 And Change Of Editor
Index For The Journal Of The Iowa Academy Of Science Volume 110 And Change Of Editor
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Title Page
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Understanding Teacher Reflection As A Significant Tool For Bringing Reform-Based Teaching To College Mathematics, K. Jeon
Journal of Mathematics and Science: Collaborative Explorations
This paper describes a senior mathematics professor’s effort to change his teaching practice in a mathematical analysis course for secondary pre-service teachers in alignment with the current reform movement. Data include semester-long observations and interviews with the professor and his students. The data were analyzed by the use of reflection as the most significant tool for examining his experience of bringing about change. The reflection was used as a bridge from theory to practice by serving as a significant point for the professor to experience the process of professional development in a real sense. Discussions include the role of teacher …
Recruiting More Mathematics Teachers Using Collaboration As The Main Ingredient: An Effective Model From Missouri, L. Kaiser
Journal of Mathematics and Science: Collaborative Explorations
A National Science Foundation grant was designed to develop a series of courses to connect mathematics concepts taught in middle school classes with actual class materials used at the middle school level; however, a second component of the grant focused on efforts to recruit more teachers into the field of mathematics. By collaborating with several groups across Missouri, several strategies were developed that were shown to have positive results, both in increasing awareness of mathematics teacher shortage issues, and in encouraging attendance in Missouri mathematics education programs. The strategies developed were easy to implement and low in cost. The Missouri …
Lessons Learned In A Math Excel Workshop: The Importance Of Maintaining High Cognitive Demands, T. Dick
Lessons Learned In A Math Excel Workshop: The Importance Of Maintaining High Cognitive Demands, T. Dick
Journal of Mathematics and Science: Collaborative Explorations
Uri Treisman's Emerging Scholars Workshop model has been implemented on many college campuses over the last twenty years. The Treisman model is based on groups of students meeting regularly in a social atmosphere to work collaboratively in solving challenging mathematics problems related to their introductory coursework. Emerging Scholars Programs (or Math Excel as it is called in many settings, including ours) have been particularly successful in increasing the academic success and participation of underrepresented groups in mathematics. The primary responsibilities of a workshop leader include the design of a session’s worksheet, as well as the facilitation of students' problem solving …
Making Upper Division Mathematics Courses Relevant For Pre-Service Teachers, G. Hill
Making Upper Division Mathematics Courses Relevant For Pre-Service Teachers, G. Hill
Journal of Mathematics and Science: Collaborative Explorations
This article addresses the disconnect that in-service and pre-service secondary school teachers feel between the material presented in upper division mathematics courses and high school classroom practice. Two examples are given from an abstract algebra course in which this problem is addressed.
Persistence In Mathematics By Underrepresented Students: Experiences Of A Math Excel Program, C. M. Hake, M. L. Crow, T. Dick
Persistence In Mathematics By Underrepresented Students: Experiences Of A Math Excel Program, C. M. Hake, M. L. Crow, T. Dick
Journal of Mathematics and Science: Collaborative Explorations
Success in mathematics by underrepresented and nontraditional college students is measured not only by academic performance (grades), but also by the continued participation and persistence of these students in mathematics coursework. The Math Excel program at Oregon State University attempts to build "learning communities" with a sharp academic focus in support of students concurrently taking introductory level mathematics courses. The Math Excel program is based heavily on Uri Treisman's Emerging Scholars Workshop model of collaborative problem solving. In this article, we examine the experience of minority students in the Educational Opportunities Program participating in the Math Excel program. While the …
Visualizing Basic Nuclear Reactions, D. Allen, M. T. Oliver-Hoyo
Visualizing Basic Nuclear Reactions, D. Allen, M. T. Oliver-Hoyo
Journal of Mathematics and Science: Collaborative Explorations
There are few instructional tools available to teach basic nuclear reactions to beginning students. The activity described in this paper can be used to help students visualize and write basic nuclear reactions such as alpha, beta, and positron decay, as well as electron capture. These reactions are represented using the technology of thermochromic paints, which either change color or turn colorless depending upon the temperature. By using a special thermochromic paint that turns colorless upon heating, students are able to visualize nuclear interactions. For instance, when positron decay occurs, the object depicting a proton will "decay" into a neutron by …