Science and Mathematics Education Commons^™

Auxin-Regulated Gene Expression, Tom J. Guilfoyle

Journal of the Iowa Academy of Science: JIAS

A number of cDNA clones to independent mRNAs that increase in amount after brief exposure to auxins have been isolated. From soybean, sequenced, and characterized. Increases in mRNA abundance can be detected as early as 2.5 minutes after auxin application to excised elongating regions of soybean hypocotyls. Increased transcription rates on the genes which encode the auxin-responsive mRNAs account, at least partly, for the accumulation of mRNAs. A variety of auxins induce the accumulation of the mRNAs, but other plant hormones have no effect on the mRNA abundance. Some of the genes which encode the mRNAs are clustered in the …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Genetic Variation Among And Within S1 Progenies Of Maize, R. J. Getschman, A. R. Hallauer

Journal of the Iowa Academy of Science: JIAS

Inbred line development consumes a great portion of the breeder's time and resources in maize (Zea mays L.) breeding programs. Source populations for line development often are developed by selfing F2 populations developed from elite line crosses. Visual selection is practiced among and within selfed progenies during the selection process for one or two generations before evaluated in testcrosses for combining ability. Effective discrimination among and within inbred and testcross progenies depends on the amount of genetic variation present. The objective of this study was to determine the effectiveness of selection among and within S₁ progenies developed from crosses …

Solid Substrate Room-Temperature Phosphorescence Of Phenothiazine And Related Compounds, William D. Savage, Ronald T. Pflaum, Catherine Hinga Haustein

Journal of the Iowa Academy of Science: JIAS

The room-temperature phosphorescence characteristics of phenothiazine, phenothiazine-based pharmaceuticals, and related compounds are presented. It was found that substitution onto the parent ring produces little variation in RTP excitation and emission wavelengths, but electron withdrawing substituents reduce RTP intensity. Procedures for the determination of procaine and promethazine in urine and clorpromazine in whole blood are presented.

Annual Report Of The Iowa Academy Of Science, 1990-91, Paul E. Rider

Journal of the Iowa Academy of Science: JIAS

Starting in 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science. These augment a 100 year history of the Academy which was written in the centennial year of 1975.

This report covers the period from July 1, 1990 to June 30, 1991. It is based on the official records of the Academy (committee reports, Board minutes, correspondence) as well as the recollections, impressions and musings of the author.

The Iowa Science Teachers Fall Conference, 1991, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Speakers ... 4
Pre-conference Workshops ... 6
General Session ... 9
Concurrent Sessions 1 ... 9
Concurrent Sessions 2 ... 13
Application for Membership ... Centerfold
Registration Fonns ... Centerfold
Luncheon Information ... 17
Concurrent Sessions 3 ... 17
Concurrent Sessions 4 ... 21
Maps ... 25 & 26

Characteristics That Determine The Holding Power Of Computer-Based Exhibits At Scitech Discovery Centre, Victoria Dodds

Theses : Honours

Scitech Discovery Centre is a hands-on science and technology centre located in the city West Complex, West Perth. The centre contains over 160 interactive exhibits including a number of computer-based exhibits that cover topics not easily incorporated in standard interactive exhibits. The problem considered in this study was the observed low percentage of visitors completing the programmes at seven of these computer-based exhibits. The author used unobtrusive observation and survey methods of data collection, for 245 visitors, on sundays over a three month period. The study was to determine two things, firstly the holding power of the exhibits, and secondly, …

What Do Primary Students Know About Light?: An Investigation Into Misconceptions Held By Year 7 Students In Western Australia, Christine Ann Coulstock

Theses : Honours

This research examines misconceptions about light held by Year 7 primary school students. The subjects (n = 37) were selected from six schools in the northeastern area of Perth, Western Australia. An Interview About Instances approach was used in this research using instance cards specifically designed for this study. Misconceptions were ascertained and those held by 25% or more of the students were considered significant. Misconceptions were found in the understanding of the physical and the physiological process of sight, the relationship of light to colour, night vision in animals and the distance light travels under different circumstances. The misconceptions …

Predicting Success Of Entering Freshman Biology Majors Taking Either Biology Or Biology And Chemistry, Sue Ann Smith

Dissertations and Theses @ UNI

The purpose of this study was to determine if the American College Test, high school percentile rank, and the number of previously-taken courses in math and science individually, collectively, or in some combination correlate with cognitive levels of development in predicting the success of entering freshman biology majors taking either biology or biology and chemistry concurrently. Success was measured using the students' grade or grades in either biology or biology and chemistry at the end of their first semester. The subjects for this study were entering freshman biology majors at the University of Northern Iowa who ranged in age from …

Curriculum For At Risk Students, Pamela W. Bean

UNF Graduate Theses and Dissertations

This curriculum project reviews the research on students who have been labeled drop-outs and/or low-achievers. Several different types of teaching models were reviewed to determine the best model to be used for drop-out and/or low-achieving students.

The project includes curriculum materials that correspond to the Minimum Level Skills objectives for the General Math II course designated by the Duval County School System in Florida. The curriculum also corresponds to the required textbook for the General Math II course. This project strives to increase the ability of the students in the Graduation Enhancement Program to pass the Minimum Level Skills Test …

A Comparison Of Mental Strategies Used By Skilled And Unskilled Mental Calculators, Paul Swan

Theses: Doctorates and Masters

The purpose of this study was to investigate the various strategies used by year seven students when carrying out division computations mentally. A comparison was made between the strategies used by high and low performing mental calculators. A number of high and low performing mental calculators were chosen as a result of their performances on twelve interview items. Both groups of students were given a set of division problems to complete mentally. After solving each problem the students were asked on a one-to-one basis to reflect on the strategy or method they used to solve the problem. The interviews were …

Cooperative Learning On Mathematical Problem Solving: Reflections By A Traditional Teacher And Her Students, Diana Metsisto

Critical and Creative Thinking Capstones Collection

As our society becomes more technologically complex, the educational system preparing our students to become citizens of this society must adapt to met changing demands. Mathematical literacy of the 21st century will require a different model of mathematics education than that which served in the past. This thesis argues for a model of mathematics education which includes as key components: problem solving, question posing, cooperative learning, concrete manipulatives, and teaching for thinking. This new model sets forth guidelines for a facilitative approach to the teaching of mathematics as opposed to the more traditional, authoritative model. This facilitative model is based …

Hexapod Herald - Vol. 1, No. 24, December 20, 1990

Hexapod Herald and Other Entomology Department Newsletters

National ESA meeting

Grants

Grant information

Congratulations

Publications

Department travelers

Miscellaneous

Calendar of events

The Illinois Mathematics And Science Academy: A Case Study Of The Creation Of An Organizational Culture, Constance Hatcher

IMSA History

The study examined the creation of an organizational culture at the Illinois Mathematics and Science Academy. The study focused on the concept of change and the effects of change on the organization and the organizational participants since the creation of the Academy in 1985. Changes in the structure and management of the Academy provided the basis for participant response.

The Illinois Mathematics and Science Academy is a public, three-year, residential school for students from the State of Illinois who are highly gifted in mathematics and science. Selected students enter having completed the ninth grade. The rigorous comprehensive curriculum, with strong …

Hexapod Herald - Vol. 1, No. 23, November 16, 1990

Hexapod Herald and Other Entomology Department Newsletters

Bruner Club

Congratulations

Grants

Deadline

National ESA meeting

Faculty

Publications

Calendar of events

Miscellaneous

Leon Lederman: Nobel Laureate And Illinois' First Science Adviser, William H. Allen

Documents

Leon N. Lederman, Illinois' first science adviser, worries about "the glaze." It coats the eyes of politicians when scientific subjects come up. The glaze might not be so important if it weren't for the fact that crucial policy issues involving science and technology are everywhere: global climate change, solid waste disposal, high-speed rail transit and stimulation of the advanced technology industry — to name just a few.

Education Research Will Not Profit From Radical Constructivism, William W. Cobern

Scientific Literacy and Cultural Studies Project

There are moments when philosophy captures the educator's attention. Such an occasion was the opening night of the 1990 annual meeting of the National Association for Research in Science Teaching. Ernst von Glasersfeld gave a highly stimulating lecture on "radical constructivism." Radical constructivism is an epistemological philosophy that divorces knowing from any notion that reality is the referent of knowledge. Radical constructivists argue that adopting this view, rather than realist views, will help teachers improve science instruction. This, however, would mean a dramatic shift away from critical realism which has deep historical roots in Western thought, and which arguably was …

Hexapod Herald - Vol. 1, No. 22, October 26, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Graduate students

Grants

Publications

Calendar of events

Department travelers

Hexapod Herald - Vol. 1, No. 21, October 12, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Grants

Graduate studentsPublications

Department travelers

Calendar of events

Alumni news

Comments To New Citizens, Stephanie Pace Marshall

Lectures, Speeches, and Talks

No abstract provided.

Ua66 1989-1990 Annual Report, Wku Ogden College Of Science & Engineering

WKU Administration Documents

Annual report created by then Ogden College of Science, Technology and Health which highlights students, faculty, alumni, international activities, facilities and equipment and departments:

• Agriculture
• Allied Health
• Biology
• Chemistry
• Computer Science
• Engineering Technology
• Geography & Geology
• Health & Safety
• Industrial Technology
• Mathematics
• Nursing
• Physics & Astronomy

Hexapod Herald - Vol. 1, No. 20, September 28, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Grants

Calendar of events

Publications

Wanted: Input for upcoming newsletters

Hexapod Herald - Vol. 1, No. 17, September 14, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Grants

Deadlines

Graduate students

Calendar of events

Departmental travelers

Hexapod Herald - Vol. 1, No. 16, August 31, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

ESA Newsletter

Attention faculty

Room 214

Grants

Gamma Sigma Delta

Teaching faculty

Graduate students

Calendar of events

Publications

Department travelers

Hexapod Herald - Vol. 1, No. 15, August 8, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

Grants

Alumi news

Department travelers

Publications

Calendar of events

Graduate students

Visitors

Remarks To The Hearing Of The Sub-Committee On Education, Arts, And Humanitites, Stephanie Pace Marshall

Lectures, Speeches, and Talks

No abstract provided.

Cooperative Learning And Its Relationship To Motivation And Achievement When Working Math Lab Problems In Principles Of Technology, Mark Edwards Rhoads

Graduate Research Papers

Working together in a dynamic group process has been shown to be highly effective in maximizing learning outcomes and helping students realize greater academic and social skills (Glasser, 1986). A great deal of research has been conducted on the relationship of cooperative, competitive, and individualistic efforts and instructional methods (Johnson, Johnson & Holubec, 1988). Johnson and his associates in 1981 (as cited by Wood, 1987) revealed that instruction focusing on cooperation and collaboration resulted in significant gains in achievement, self-esteem and social development. Many viable and successful forms and hundreds of thousands of enthusiastic adherents have realized extraordinary successes using …

Hexapod Herald - Vol. 1, No. 14, July 17, 1990

Hexapod Herald and Other Entomology Department Newsletters

Grants

Awards

Grad students

Miscellaneous

Traveling out of the department

Campus wide expovision

Calendar of events

New projects

Hexapod Herald - Vol. 1, No. 13, July 2, 1990

Hexapod Herald and Other Entomology Department Newsletters

Miscellaneous

New or revised projects

Grants

Graduate students

Entomological Scoiety of America, North Central Branch News

Publications

Traveling out of the department

Hexapod Herald - Vol. 1, No. 12, June 18, 1990

Hexapod Herald and Other Entomology Department Newsletters

Grants

Miscellaneous

Grad students

Traveling out of the department

Committee Reappointments

Publications

Departmental happenings