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Articles 13891 - 13920 of 19308

Full-Text Articles in Science and Mathematics Education

Floristic Composition And Conservation Status Of Fens In Iowa, John A. Pearson, Mark J. Leoschke Jan 1992

Floristic Composition And Conservation Status Of Fens In Iowa, John A. Pearson, Mark J. Leoschke

Journal of the Iowa Academy of Science: JIAS

Over 200 extant fens of varying condition were documented during an extensive inventory conducted in Iowa between 1986 and 1991. Approximately half of the extant fens support endangered, threatened, special concern, or other rare plant species. Approximately 25 fens are outstanding conservation prospects with intact vegetation, high species richness, and rare species. Nearly 40% of all potential fen sites have been destroyed by cultivation or damage; another 30% remain unknown due to lack of a field visit, but most appear on aerial photographs to be very small, disturbed fragments. In addition to their traditionally recognized range in northwest Iowa, fens …


Integrating Science Through Literature, Debra J. Pender Jan 1992

Integrating Science Through Literature, Debra J. Pender

Theses Digitization Project

Whole language method--Integration of science and literature--Language centered orientation--Integrated curriculum.


Chaos And Order, Mystery And Knowledge, The Beautiful And Mundane: College Student Conceptualizations Of Nature, William W. Cobern Jan 1992

Chaos And Order, Mystery And Knowledge, The Beautiful And Mundane: College Student Conceptualizations Of Nature, William W. Cobern

Scientific Literacy and Cultural Studies Project

What do students believe about the world around them? Hawkins (1983) suggested that young students can have a difficult time understanding heliocentrism because their personal experience is literally geocentric. What this illustrates is that meaningful learning in the science classroom presupposes students who enter with beliefs about the world compatible with science as it is taught in the classroom. The study of student beliefs (or for that matter, teacher beliefs) at fundamental levels is the study of worldview (Cobern, 1991a). The research reported here was an interpretive study of beliefs about nature, a delimitation of worldview, held by women college …


Science Notes - Standardized Tests Negatively Impact Classroom Instruction Jan 1992

Science Notes - Standardized Tests Negatively Impact Classroom Instruction

Iowa Science Teachers Journal

Researchers from Boston College recently completed a three year, 1 million-dollar study sponsored by the National Science Foundation. They confirmed the belief that most standardized and textbook tests emphasize low-level thinking and knowledge and that they exert a profound, mostly negative effect on classroom instruction.


Science Notes - Science Teaching Awards, Jonna M. Higgins Jan 1992

Science Notes - Science Teaching Awards, Jonna M. Higgins

Iowa Science Teachers Journal

The National Science Teachers Association and Shell Oil Company will sponsor the Science Teaching Award for educators who have had a significant impact on their communities, schools and students of all backgrounds and abilities.


Different Perspectives On The Natural World: Biology Professors And Their Students, William W. Cobern Jan 1992

Different Perspectives On The Natural World: Biology Professors And Their Students, William W. Cobern

Scientific Literacy and Cultural Studies Project

The science classroom is the location of complex interactions between students, teacher, curriculum, and environment. These interactions can lead to conflict where the various factors pertaining to students, teacher, curriculum, and environment are at odds. Interest in these types of conflicts has led to numerous studies of classroom processes including those concerned with gender, ethnicity, religion, and language (e.g., Fraser, 1989). Worldview is a factor of more recent interest to researchers and is at an early stage of methodological development and nascent investigation (Cobern, 1991c). Pertaining to the classroom, worldview research focuses on the fundamental beliefs held by teachers and …


Bird Feeding, Bird Watching, Ed Harris Jan 1992

Bird Feeding, Bird Watching, Ed Harris

Iowa Science Teachers Journal

A year ago at Christmas time, I became seriously fascinated with watching birds at feeders while we were visiting our daughter in Shenandoah, Iowa. She had put out a small hanging feeder, and I spread some loose seed in the garden plot behind the house. With my binoculars, I watched for hours by the window, seeing the birds in minute detail, and I considered trying this when we got back home.


Science Notes - National Mole Day Foundation Offers Information Jan 1992

Science Notes - National Mole Day Foundation Offers Information

Iowa Science Teachers Journal

Each year, the National Mole Day Foundation, designed to promote awareness of and enthusiasm for chemistry, organizes volunteers to collect, collate and distribute ideas that can be used to celebrate "Mole Day."


Science Notes - Molecular Biology Enrichment For Youth, Elizabeth B. Sharpe Jan 1992

Science Notes - Molecular Biology Enrichment For Youth, Elizabeth B. Sharpe

Iowa Science Teachers Journal

Molecular Biology Enrichment For Youth, a laboratory science program for students entering eighth or ninth grade, will be held June 19 through July 17, 1993, at Iowa State University.


Science Notes - Program For Women In Science And Engineering, Amy L. Wall Jan 1992

Science Notes - Program For Women In Science And Engineering, Amy L. Wall

Iowa Science Teachers Journal

As a part of its Program for Women in Science and Engineering (PWSE), Iowa State University will host career conferences entitled ''Taking the Road Less Traveled." This program is for junior and senior high girls in Iowa. The 1993 conference for grades 9-12 will be on Thursday, March 25, and the conference for grades 6-9 will be on Saturday, April 17.


Science Notes - Duracell Nsta Scholarship Competition, Amy L. Wall Jan 1992

Science Notes - Duracell Nsta Scholarship Competition, Amy L. Wall

Iowa Science Teachers Journal

Students wishing to compete for $30,000 in scholarships may enter the 1993 Duracell NSTA Scholarship Competition. Sponsored by Duracell U.S.A. and administered by the National Science Teachers Association, the competition offers students in grades nine through twelve have an opportunity to win up to $10,000 in college scholarships.


1991-92 Annual Report, Illinois' Investment, Illinois Mathematics And Science Academy Jan 1992

1991-92 Annual Report, Illinois' Investment, Illinois Mathematics And Science Academy

Annual Reports

On behalf of the board of trustees, faculty, staff, students, parents and alumni of this pioneering educational community, it is our privilege to share with you the sixth annual report of the Illinois Mathematics and Science Academy. The 1991-92 year was indeed a remarkable one for the Academy; we are pleased to report some of the highlights.

Externally, programs for other school systems, teachers and students in Illinois continued to expand. IMSA's impact on the state included helping 23 Illinois school districts restructure their mathematics and science programs, awarding teachers IMPACT II grants to exchange innovative classroom programs, and sponsoring …


Front Matter Jan 1992

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


In Memoriam: Harold W. Beams (1903-1992), Richard G. Kessel Jan 1992

In Memoriam: Harold W. Beams (1903-1992), Richard G. Kessel

Journal of the Iowa Academy of Science: JIAS

Harold W. Beams, long time Professor of Biology at the University of Iowa, died at his home in Iowa City on January 26, 1992 after an illness of several months. Professor Bearns was born in Belle Plaine, Kansas on August 3, 1903. He received the B.A. Degree in 1925 from Wichita State University, the M.A. Degree in Zoology in 1926 from Northwestern University, and the Ph. D. Degree in Zoology in 1928 from the University of Wisconsin.


Cooperative Learning Third Grade Mathematics Activities For Lep Students, Jeanne M. Dunaway Jan 1992

Cooperative Learning Third Grade Mathematics Activities For Lep Students, Jeanne M. Dunaway

Theses Digitization Project

Limited English Proficiency students--Third grade (3rd grade)


Administrative Strategies In Developing A Real-Life Skills Mathematics Unit, Dorian A. Jones Jan 1992

Administrative Strategies In Developing A Real-Life Skills Mathematics Unit, Dorian A. Jones

Theses Digitization Project

Average students -- 6th, 7th, 8th grades (middle schools) -- Manipulatives and authentic materials -- Administrative responsibilities.


The Iowa Science Teachers Fall Conference, 1992, Iowa Academy Of Science Jan 1992

The Iowa Science Teachers Fall Conference, 1992, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Speakers ... 4
Housing Information ... 6
Pre-conference Workshops ... 7
General Session ... 10
Concurrent Sessions I ... 10
Concurrent Sessions 2 ... 15
Workshop Registration Form ... Centerfold
Conference Registration Form ... Centerfold
Application for Membership ... Centerfold
ISTS Sweatshirt Order Form ... Centerfold
Luncheon Information ... 21
Concurrent Sessions 3 ... 21
Concurrent Sessions 4 ... 26
Maps ... 33,35
ISTS Officers and Regional Directors ... Inside Back Cover


Iowa Academy Of Science Directory, 1992-93, Iowa Academy Of Science Jan 1992

Iowa Academy Of Science Directory, 1992-93, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Board of Directors ... 5
Program Directors ... 6
Editors ... 6
Committees ... 8
Sections ... 22
Awards of Merit ... 28
Excellence in Science Teaching Awards ... 30
Past Presidents ... 33
Membership Roster ... 34


2: "The Mapping Of Chromosome 16", Norman A. Doggett, Raymond L. Stallings, Carl E. Hildebrand, Robert K. Moyzis Jan 1992

2: "The Mapping Of Chromosome 16", Norman A. Doggett, Raymond L. Stallings, Carl E. Hildebrand, Robert K. Moyzis

Genomics: Past & Future

Human chromosome 16 is the main focus of the mapping efforts at Los Alamos. The large photomicrograph on these opening pages illustrates the starting point for those mapping efforts, the evaluation of our chromosome-16-specific library of cloned fragments. Among the 23 pairs of human chromosomes, one pair, chromosome 16, is identified by fluorescence in-situ hybridization. Thousands of yellow fluorescent probes derived from the clone library have hybridized to both copies of chromosome 16. The high density and uniform coverage of the fluorescent signals were a strong indication that we could use the library to construct a map of overlapping cloned …


Science Notes - "Excellence In Polymer Education" Award, Amy L. Wall Jan 1992

Science Notes - "Excellence In Polymer Education" Award, Amy L. Wall

Iowa Science Teachers Journal

To recognize the efforts of secondary and junior high school chemistry teachers who help students meet the challenges and responsibilities of living in a technological age, the Polymer Education Committee (POLYED) of the American Chemical Society sponsors the "Award for Excellence in Polymer


The Distribution Of Amphipods In Southeastern Minnesota And Their Relation To Water Quality And Land Use, James A. Muck, Raymond M. Newman Jan 1992

The Distribution Of Amphipods In Southeastern Minnesota And Their Relation To Water Quality And Land Use, James A. Muck, Raymond M. Newman

Journal of the Iowa Academy of Science: JIAS

The distribution of the amphipods Gammarus pseudolimnaeus and Hyalella azteca was determined from 97 designated trout streams in Minnesota, along with temperature, conductivity, and nitrate levels. Streams were classified into 4 land use/geology groups. G. pseudolimnaeus was found in 11 counties and at 123 of 168 sites in 83 of the 97 streams sampled. Hyalella azteca was found in 7 counties at 26 sites m 21 streams. Spearman rank correlations showed a high degree of correlation between nitrate (range: 0-11 mg N/L), conductivity (range: 325-870 μS/cm), and geology. The relative abundance of G. pseudolimnaeus was negatively correlated with nitrate, geology …


Thematic Approach To Teaching Science In Kindergarten For Use With First And Second Language Students, Gerene Marie Sadberry Jan 1992

Thematic Approach To Teaching Science In Kindergarten For Use With First And Second Language Students, Gerene Marie Sadberry

All Graduate Projects

Thematic Science units were established for the Wapato kindergarten in both Spanish and English. Approximately three hundred students are participants in the program for which this curriculum was designed. This study suggests how selected science objectives may be implemented using the thematic approach. Each theme contains a media resource list of Items available from the Wapato Primary Media Center and suggested activities which will help to integrate the science unit with other subject areas. The Intent of the curriculum design ls that children learn language and science naturally when they are developed in a meaningful context.


Geology Of Iowa Fens, C. A. Thompson, E. A. Bettis Iii, R. G. Baker Jan 1992

Geology Of Iowa Fens, C. A. Thompson, E. A. Bettis Iii, R. G. Baker

Journal of the Iowa Academy of Science: JIAS

Fens are peatlands which are dependent on groundwater discharge to provide nutrient enrichment. Fens are found in a variety of landscape positions and in most Iowa landform regions. This paper presents a classification system for Iowa fens based on landscape position, stratigraphy, and hydrologic factors. Iowa fens can be separated into six categories: 1) fens along valley wall slopes; the groundwater source for these fens is sand and gravel buried between glacial tills (inter-till); 2) fens in hummocky topography on the northwestern margin of the Des Moines Lobe landform region; the water source is sand and gravel buried within glacial …


The University Of Iowa Museum Of Natural History: An Historical Perspective, George D. Shrimper Jan 1992

The University Of Iowa Museum Of Natural History: An Historical Perspective, George D. Shrimper

Journal of the Iowa Academy of Science: JIAS

The 132-year record of UIMNH essentially mirrors historical and on-going trends in related institutions. As scholarship grew in the natural sciences during the 19th century, natural history museums became centers for scientific research. A "Golden Age" of museum-based expeditionary work and taxonomic research was marked at UI by the careers of curator/naturalists Calvin, Nutting, Macbride, and Shimek. Systematic biology and paleontology thrived with the accumulation of extensive collections. De-emphasis of "natural history" studies followed after 1920-30 with a concomitant growth in cellular and molecular biology. In seeking new directions and financial support, many museums, including UIMNH, shifted emphasis to public …


Science Notes - Environmental Issues Instruction (Eii) Workshops, Stephanie A. Althof Jan 1992

Science Notes - Environmental Issues Instruction (Eii) Workshops, Stephanie A. Althof

Iowa Science Teachers Journal

A Resource Enhancement and Protection Act (REAP) grant has been awarded for the 1992-93 continuation of eii. The program, designed to teach responsible environmental action, is appropriate for elementary and junior and senior high school students in all disciplines.


Science Notes - Field Testers Needed For Biology Education Project, Jonna M. Higgins Jan 1992

Science Notes - Field Testers Needed For Biology Education Project, Jonna M. Higgins

Iowa Science Teachers Journal

The National Association of Biology Teachers (NABT) is seeking 40 life science and biology teachers to field test hands-on laboratory activities that require little or no money to implement. Field testers will receive a consulting fee of $450 plus $25 to implement the materials into their classrooms.


Astronomy Resources - Taking A Meteor Shower, Stephanie A. Althof Jan 1992

Astronomy Resources - Taking A Meteor Shower, Stephanie A. Althof

Iowa Science Teachers Journal

The summer months are often the most popular for skygazing. Mild weather combined with a host of appealing astronomical events tends to attract both amateur and professional astronomers to look skyward. One of the more brilliant and "flashy" events to observe is a meteor shower. As children, many of us remember watching a "falling" star shoot across the sky. Little did we know that what we were actually observing was a piece of space debris known as a' 'meteor.'' Meteors may appear at any time and from any direction, but most of the visible meteors viewed each year are parts …


Science Calendar Jan 1992

Science Calendar

Iowa Science Teachers Journal

No abstract provided.


Cover - Front Matter - Table Of Contents Jan 1992

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.


Teaching Chemistry Safety: A Personal Issue, Judith Lemons Jan 1992

Teaching Chemistry Safety: A Personal Issue, Judith Lemons

Iowa Science Teachers Journal

As chemistry teachers, it is our moral and legal duty to make the laboratory a safe and healthy place for our students. However, safety policies will be most effective if the students share the responsibilities for promoting safety and preventing accidents. We can help to motivate our students to remember and apply safety principles if we make safety a personal issue for each student. I have found that a student will more readily comply with laboratory rules on a regular basis if the rules are important for that student, and that student has actively participated in the safety learning process.