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Research In Teaching And The Development Of A Theory Of Science Teaching, R. P. Tisher

Proceedings of the Iowa Academy of Science

This paper outlines some of the significant aspects of research in teaching. Three phases can be distinguished in this research. They are the descriptive, the pragmatic and the eclectic-synthetic ones. The descriptive phase is characterized by the development of classroom observation schedules and the provision of sets of concepts permitting teachers and research workers to communicate about procedures. The categorization of behaviors has resulted in more attention being given to them. Hopefully, the vocabulary and concepts generated in the descriptive phase will not only aid in communicating ideas about teaching but will lead to a greater control over the process.

The Development Of An Instructional Materials Center In Reinbeck Community High School, Sally Brown Arends

Graduate Research Papers

This paper proposes changes to the instructional materials center of the Reinbeck Community High School to bring it in line with the 1969 Standards for School Media Programs.

Calanoid Copepods From The Forest To Prairie Transition In The Itasca Park Region Of Minnesota, Phyllis J. Kingsbury

Proceedings of the Iowa Academy of Science

Calanoid copepods found in a summer survey of northwestern Minnesota lakes and ponds were: Epischura lacustris, Diaptomus oregonensis, D. leptopus, D. sakatchewanensis, D. nudus, and D. siciloides. Some diaptomid species correlated with vegetational type. E. lacustris, D. oregonensis, D. saskatchewanensis were characteristic of pine hardwood and mesic deciduous forest regions while D. nudus and D. siciloides were characteristic of Oak-Savanna and prairie regions. D. leptopus was characteristic in shallow water habitats and occurred on both sides of the transitional area.

Echinoderm Zonules In The Devonian Of Iowa, Harrell L. Strimple

Proceedings of the Iowa Academy of Science

A tentative framework of ten echinoderm zonules, some of which are not new, is proposed: Nortonechinus owensis Zonule (upper Owen Member, Lime Creek Formation): Dactylocrinus Zonule (upper Cerro Gordo Member), Xenocidaris Zonule (lower Cerro Gordo Member, Lime Creek Formation); Desmidocrinus Zonule, Belanskicrinus Zonule, Agelacrinites Zonule (Mason City Member, Shell Rock Formation); Strobilocystites Zonule, Euryocrinus Zonule (upper Rapid Member), Hexacrinites Zonule (middle Rapid Member), Megistocrinus clarki Zonule (lower Rapid Member, Cedar Valley Formation). Some forms, or assemblages, appear to have decided stratigraphic significance, but more study is needed.

The Centralized Elementary Library: A Review Of Selected Research Of The Sixties, Allaire Hazen

Graduate Research Papers

In 1961 Douglas wrote that the primary school library was "firmly established as a necessary part of a good modern school, but in truth it does not seem to have been accepted by educators or by the taxpaying citizenry for centralized elementary library facilities and services are not commonly available to elementary students. This study intends to summarize some of the writings and research in this area and to provide a comparative analysis between selected research and current opinion by use of an opinionnaire administered to 24 librarians, 35 classroom teachers, and 11 administrators. The respondents were enrolled in summer …

Open Letter From The President, Lena Keithahn

Iowa Science Teachers Journal

Recent mailings from the Executive Secretary of the Iowa Academy of Science to every science teacher in Iowa should encourage each one of us to become an active part of the Iowa Science Teachers Section of the Academy and to become well informed about every phase of the program. By becoming involved in the Iowa Academy you can enjoy all the benefits of membership as well as the advantage of working with science teachers throughout the state.

The Need For Sex Education, R. J. Vanden Branden

Iowa Science Teachers Journal

There is no shortage of information and misinformation about sex education; however, it is difficult to determine which information is based upon more than personal bias and experience. Educators profess to educate children in those aspects of behavioral change which are based upon the needs of the students. The assumption is that if a need exists that is not otherwise being met, the schools must satisfy that need. Is sex education such a need?

A Comparison Of Achievement In Biology In An Individualized And Group Approach To Bscs Biology, Harry F. Fulton

Iowa Science Teachers Journal

In January of 1970 the author completed a study at The University of Iowa. In general the purpose of the study was to compare student outcomes as a result of exposure to an individualized and a group approach to teaching the Biological Sciences Curriculum Study (BSCS) course.

Issues In Elementary School Science Raised In Publication

Iowa Science Teachers Journal

At which point does a child understand science? Should elementary school science serve his immediate interests or future needs? These are some of the questions raised by D. C. Ipsen, author of Issues in Elementary School Science, the latest publication of the National Science Teachers Association.

Iowa Section Of Aapt Will Meet In April

Iowa Science Teachers Journal

The Annual Spring Meeting of the Iowa Section of the American Association of Physics Teachers will be held Saturday, April 25, 1970, at Grinnell College.

How We Raise Clean, Healthy Amoeba Proteus, Eugene C. Bovee, Sandra C. Thompson, Mercedes L. Acuña

Iowa Science Teachers Journal

We so frequently use Amoeba proteus for observation and experimentation in our classes in Cell Structure and Function, and Physiological Protozoology at the University of Kansas, that it has been necessary to avoid buying the many needed cultures from any of the major biological suppliers. Consequently, we have had to devise a reasonably reliable method of our own to culture that amoeba.

Observation, Investigation, And Evaluation Of Current Practices And Recommendations For An Imc Center For Grades K-6, Phyllis Grobe

Graduate Research Papers

It was the purpose of this study (1) to observe services being offered to children and teachers through an elementary/media program; {2) to investigate organizational practices being used in elementary resource centers; (3) to subjectively evaluate present practices; and (4) to recommend a plan for functional library service in grades K-6. Fourteen elementary library programs were visited for this study. Along -with the observations, time was spent in visitation with the person in charge of each center. To gain uniformity in the type of information on gathered from which to formulate an evaluation of elementary library service, a sampling questionnaire …

Distribution Of Soils By Natural Drainage Class And By Slope Class For Iowa Counties, E. C. A. Runge, R. I. Dideriksen, F. F. Riecken

Proceedings of the Iowa Academy of Science

Natural drainage class (namely, poor, imperfect, and well drained) and slope class are estimated for Iowa counties through a 2% ¼-section sample soil survey. Estimate of soil drainage class is given also by slope class. Counties vary widely in the amount of poorly drained soils. Kossuth County has 56.4% of poorly drained soils, while Allamakee has less than 1%. Land use management and conservation considerations are discussed briefly.

Splenocytes And Lymphocytes: A Study In The Rat Using The Fluorochrome Acridine Orange, N. F. Metcalf, S. P. Youngberg, W. K. Metcalf

Proceedings of the Iowa Academy of Science

Single cell suspensions of lymphocytes derived from the spleen and thoracic duct of rats were labelled with the fluorochrome acridine orange, proved to be viable by tissue culture, and injected into the left ventricle of isogenic rats. No evidence for recirculation of lymphocytes from blood to thoracic duct lymph within a three hour cycle was obtained. The injected cells whether derived from the spleen or thoracic duct homed only to the tissues of the lymphomyeloid complex.

Recharge To Ground Water From The West Nishnabotna River, Randolph Stone, Lyle V. A. Sendlein

Proceedings of the Iowa Academy of Science

Surface water budgets, calculated from base-flow discharge data, for several reaches of the West Nishnabotna River in Southwest Iowa, reveal two reaches with anomalously small incremental discharges. These small incremental discharges cannot be accounted for through evapotranspiration at the time of the discharge measurements nor can they be related to losses associated with shallow ground water withdrawals near the river. The small incremental discharges in the two reaches are interpreted as resulting from influent conditions at natural ground water recharge sites within each reach. The southernmost of these two sites is located near a major buried valley which may be …

Production Of A Linear Temperature Rise In An Electrical Furnace, Virgil L. Banowetz

Proceedings of the Iowa Academy of Science

Temperature control of an electrical furnace is generally accomplished by means of a servo mechanism. For simple laboratory experiments, however, it may be desirable to control temperature by manual adjustment of power and thus avoid the expense of building a servo. A procedure is offered here for producing a linear temperature rise in an electrical furnace by a time-dependent power function, Q (t). This function is a correspondence of power needed in the heating coil (to produce the desired rate of temperature rise) vs time. A computer analyzes the characteristics of the furnace, calculates the function, and tabulates it. By …

The Effects Of Catalytic Or Promoter Oxides On The Brin Process, John L. Moriarty Jr.

Proceedings of the Iowa Academy of Science

Future generation high altitude aircraft will require logistics independent, on-board oxygen generation systems. In an attempt to meet this challenge the eighty year old Brin Process,

BaO + ½O₂ ↔ 750°C ↔ BaO_{2 ,}

was re-examined using a laboratory breadboard model. The influence of eighteen oxides as reaction promoters was studied and the results of forty admixture experiments are evaluated. Observed behavioral trends can be explained based on geometric and electrochemical factors. An equal molar mixture of La₂O₃ and BaO does lower the reaction temperature about 100°C, increases the reaction rate, and improves the oxygen …

A Study Of Considerations For Choice And Use Of Copying Machines In The School Library, Robert D. Thoms

Graduate Research Papers

Shall serious consideration be given to obtaining a copier for use in the school library setting? How shall the librarian arrive at the best possible judgement as to which machine is best? Once a choice has been made, what is the best way to finance continuing use of the machine? What is proper use, in the light of present laws? What copyright changes are contemplated, and what is the best way for the librarian to adjust to them? These are all questions involved in the fundamental problem of having a masterless copying machine.

This problem will be dealt with forthrightly. …

Report On Formica Exsectiodes Forel In Hamilton County, C. L. Christensen, K. M. Quick

Proceedings of the Iowa Academy of Science

Data are presented on the discovery of a large number of undisturbed colonies of mound building ants and the ecological conditions of their development.

Low Pressure Die Casting, David V. Burkholder

Graduate Research Papers

As industry in our nation becomes more automated and more die casting is used in the formation of so many items used by industry and the consumer, it appears to this writer that knowledge of and experience in the subject area has substantial potential for enriching metal courses in our high school industrial arts program. It is the writer's opinion, arrived at through conversations with fellow instructors and a limited amount of research that there is very little being done on this subject at the high school level, mainly due to the lack of available equipment that is within the …

Annual Report And Membership List, 1969-70, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Minutes of the Annual Business Meeting ... 3
Report of Tellers - Constitution Revision ... 7
Report of the Secretary - Treasurer ... 7
Report of the Auditing Committee ... 7
General Operating Budget 1970-71 ... 8
Report of the Membership Committee ... 9
Report of the Finance and Endowment Committee ... 16
Report of the Science Teaching Committee 17
Report of the Science Talent Search Committee ... 19
Report of the Conservation Committee ... 20
Report of the Resolutions Committee ... 21
Report of the Editor ... 22
Report of the High School Relations Committee ... 22
Membership …

Book Selection Policies In Small Iowa High Schools, Phyllis R. Cook

Graduate Research Papers

The central problem of this study was to attempt to determine what factors influence book selection in small Iowa high schools. The procedure followed used a systematic sampling technique and a questionnaire was mailed to librarians in schools of not more than three hundred students enrolled in the high school. Schools were selected from the Iowa Educational Directory, l 1969-1970, listing of school districts, officials, and student populations. It was hoped that at the conclusion of this study, the findings would show the sources school librarians found most valuable in filling orders: and to try and establish a pattern adopted …

Letter From A School In India, M. Kattaiah

Iowa Science Teachers Journal

The text of a letter from Z. P. High School in Upalapadu, India.

The Effect Of The Cerium Concentration On The Lattice Parameter Of Cubic Cerium Tungsten Bronzes, J. J. Tully, G. J. Vogt, R. J. Reuland

Proceedings of the Iowa Academy of Science

Cerium tungsten bronzes, Ce_x, WO₃ were prepared by the high temperature, solid state reaction of CeO₂, W, and WO₃. The intimately mixed reactants were sealed under a vacuum in quartz ampoules and heated for not less than 100 hours at 1050°C. The lattice parameter a₀ of the cubic bronzes was determined from Debye-Scherrer X-ray powder patterns. The cerium content of the bronzes x was established by isotopic dilution techniques. Cerium tungsten bronzes of cubic symmetry were found to crystallize in the range 0.070 < x < 0.186. The lattice parameter a₀ was found to increase linearly with x in …

A Survey Of Nineteenth And Twentieth Century Best Sellers, Vera Helena Osland

Graduate Research Papers

The term 11 best seller" is defined in Webster's Third New International Dictionary as "a book or other publication whose sales are among the highest of its class." This is the best seller in its largest sense but for the purpose of this paper its definition must be more precisely spelled out.

Recreational Reading In The Elementary School, Doris Fistler

Graduate Research Papers

A school librarian is often called upon to talk with groups of teachers and parents, as well as to present the library program to the administration, the school board, and the community. For these talks, more concrete material than, "I think . . . ," is needed. The purpose of this project was to gain from wide and varied reading a background that would serve as source material in presenting recreational reading to the above-mentioned groups.

Literally volumes of material have been written on the subject of recreational reading, numerous research studies have been made, and general concern by the …

University Catalog 1970-1972, University Of Northern Iowa

UNI Programs and Courses Catalogs

Table of Contents

University Calendar ... 4-7
University Map ... 8-9
The University and Its Program ... 10
General Information ... 13
Student Housing ... 13
Student Services ... 16
Student Financial Aid ... 18
Student Activities and Honors ... 21
University Facilities and Educational Services ... 25
University Policies ... 33
Admission Procedures ... 33
Transfer Students ... 37
Resident-Nonresident Student Classification ... 39
Requirements for Graduation ... 42
Teaching Certificates ... 45
Enrollment and Registration ... 46
Fees Schedule ... 48
General Academic Policies ... 50
Curricula ... 59
Undergraduate Curricula ... 60
Bachelor of Arts Degree Programs …

Metabolic Evaluation Of Preserved And Reinserted Canine Kidneys, John L. Depasquale, Alfred M. Hunt Jr., Edwin A. Mirand, Gerald P. Murphy

Proceedings of the Iowa Academy of Science

Twenty-four hour preservation of kidneys has been achieved without perfusion, and in some instances without oxygen in a hypothermic hyperbaric environment (Groenewald et al., 1969). These experiments were designed to evaluate the survival of the preserved kidneys and the success of the preservation techniques.

The Effect Of Diffusion And Concentration Of Responsibility On The Risky Shift Phenomenon In A Two-Choice Situation, Gene F. Smith, Thomas L. Radinsky

Proceedings of the Iowa Academy of Science

The role of diffusion of responsibility in the production of the risky shift phenomenon was examined in a two-choice situation. Expected value of the two choices was held constant by varying payoffs inversely with their probabilities. After 100 trials alone, subjects were put into one of three conditions for the next 100 trials: Control Condition, Group Diffusion of Responsibility Condition or Group Concentration of Responsibility Condition. No significant shifts were found in any of these conditions. The Kogan and Wallach prediction that diffusion of responsibility would lead to a greater risky shift was not supported. The results were consistent with …

Children's Judgments Of Age, William R. Looft, James E. Patton, Don C. Charles, Barbara Gundelach, Kathryn Magnuson

Proceedings of the Iowa Academy of Science

Age judgments of human figures by children, ranging in age from 3 through 9 years, were investigated. The stimuli consisted of 4 different male figures drawn according to typical physical characteristics of the middle-aged adult, adolescent child, and infant. The figures were reproduced in 2 sizes and were matched in all possible pairings. Ss' accuracy in age judgments increased steadily over the 7 age levels. The errors of young Ss were primarily due to a figural-size response set. Older Ss made increasing use of other physical features in making their judgments. Implications of these findings were discussed with references …