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Organizing A Rock And Mineral Club (Part I), Ron Bonstetter

Iowa Science Teachers Journal

This is Part I of a collection of ideas designed to promote the formation of rock and mineral clubs. Such programs are appropriate for interested individuals from upper elementary grades through high school. A broad range of interests and skills are suggested to leave room for the creativity of prospective club advisors. Membership in clubs of this nature provides many opportunities for the development of interests, hobbies and careers. The desire to pursue rock and mineral studies is developed and encouraged by creating an informal setting where individuals can identify and fulfill their interests. A successful club allows its members …

Iowa In Perspective

Iowa Science Teachers Journal

This is what the United States would look like if the size of the states was proportional to their value of farm production.

Don't Just Talk About The Weather: Investigate It Statistically, Bonnie H. Litwiller, David R. Duncan

Iowa Science Teachers Journal

Scientists frequently wish to determine whether the means of two sets of data differ significantly. A statistical tool for investigating such a question is the "Student t-distribution" so named because its originator, W. S. Gosset, published his findings under the pseudonym "Student". The problem considered in this paper will involve paired variates, that is, the case in which the observations in the first sample of data are paired naturally with those of the second.

Dates To Remember

Iowa Science Teachers Journal

If your organization has events of interest to Iowa Science Teachers, send dates and places to ISTJ.

The Junior Academy

Iowa Science Teachers Journal

Joe Moore, Science Consultant with the Area Education Agency of Elkader, has been selected as the new Director of the Iowa Junior Academy of Science. IJAS provides a medium of communication and service to students and teachers in assisting science-prone students in the development and recognition of their science skills.

Plant Hemoglobin

Iowa Science Teachers Journal

Plants die so that man might eat. Now they're also bleeding so that scientists might understand how hemoglobin, the oxygen-carrying molecule in human blood, is made.

New Nsta Publications

Iowa Science Teachers Journal

The titles can be obtained by writing the National Science Teachers Association.

Organizing A Rock And Mineral Club (Part Ii), Ron Bonstetter

Iowa Science Teachers Journal

Rock and Mineral Clubs (Part I) provided ideas for the initial organization of rock and mineral clubs. In order for club members to develop this avocation to its fullest, a number of basic skills have to be mastered and some equipment must be acquired. The basic skills include rock, mineral and fossil identification and collection, as well as skills in lapidary such as tumbling, cutting, shaping and mounting gemstones.

Westinghouse Science Talent Search

Iowa Science Teachers Journal

Those teachers desiring information on the Westinghouse Science. Talent Search should contact Dr. Gary Downs, Director, Department of Education, Iowa State University.

Decapods Of Iowa (Part I), Gary Phillips

Iowa Science Teachers Journal

Decapods are a fascinating group of animals which inhabit most aquatic environments in Iowa. As they are secretive, their habits are not well known. However, they play an important role in Iowa's aquatic communities and are worthy of more attention by biology teachers and their students. Decapods are members of the class Crustacea, a group of arthropods with gills and heavy, crust-like exoskeletons. Crustaceans include such diverse forms as the microscopic water fleas and copepods, the larger sowbugs and amphipods and the more familiar decapods such as crayfish and river shrimp. All decapods have ten walking legs. In Iowa, decapods …

The Metric "Indy", Janice Brandt, Daniel Yates

Iowa Science Teachers Journal

The following is a game designed to provide practice with basic metric units of linear measurement. Students turn up cards to advance their "race cars" along a centimeter track. The race cars can be made of white cuisenaire rods, centicubes or similar objects. This game is suitable for grades 3-8.

When You've Reached The Last Straw

Iowa Science Teachers Journal

Flatten one end of a drinking straw. With scissors, trim the flattened end into the shape shown in Figure 1. Put the flattened, trimmed end into your mouth and blow hard. With a few tries you should become proficient in producing a loud squawk.

Iowa's Diatoms: Part I (Collection), James Hungerford

Iowa Science Teachers Journal

The three dominant groups of algae found in Iowa are Chlorophyta (green algae), Cyanophyta (blue-green algae), and Chrysophyta (golden-brown algae). The golden-brown algae is composed of a variety of species called diatoms. This is the first in a series of articles on Iowa diatoms. Unlike most other plant species which have cell walls of cellulose, diatoms have siliceous cell walls constructed of two overlapping valves which fit together like the lids of Petri dishes. These walls are ornamented with fine ridges, lines and pores that are characteristic for each species. Although the contents of the cells decompose readily the cell …

New Scientist

Iowa Science Teachers Journal

New Scientist is an interesting magazine concerning new discoveries in science having large social, environmental and technological impact written in a popular style.

Free Materials

Iowa Science Teachers Journal

Available from Educational Materials, Chevron Chemical Company.

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Turtles, James L. Christiansen, Russell R. Burken

Iowa Science Teachers Journal

Iowa has 23 amphibian and reptilian species whose known populations or ranges within the state are so small as to justify their inclusion in the state's endangered or threatened list (Roosa, 1977). This paper is intended to inform the Iowa scientific teaching community of the plight of these species and to recruit help in gathering information relative to their distribution. Most of the information presented here has been accumulated by Christiansen and Bailey (manuscripts in preparation or in press) in their work on the amphibians and reptiles of Iowa.

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Lizards, James L. Christiansen, Russell R. Burken

Iowa Science Teachers Journal

Iowa has 23 amphibian and reptilian species whose known populations or ranges within the state are so small as to justify their inclusion in the state's endangered or threatened list (Roosa, 1977). This paper is intended to inform the Iowa scientific teaching community of the plight of these species and to recruit help in gathering information relative to their distribution. Most of the information presented here has been accumulated by Christiansen and Bailey (manuscripts in preparation or in press) in their work on the amphibians and reptiles of Iowa.

Henry A. Wallace And China, Linda Eichmeyer Clarkson

Dissertations and Theses @ UNI

The views of Henry A. Wallace with respect to China underwent a number of changes through the years. One constant theme ran throughout all of his references to the "Middle Kingdom," however--the importance of that nation to world peace and prosperity. Wallace publicly affirmed his support for the Chinese Nationalist Government during his diplomatic mission to Soviet Asia in 1944, but in a private report to President Roosevelt confided his true criticisms of and fears for Chiang's regime. He termed the present Kuomintang leadership "reactionary," and called upon the United States to be ready to shift its support if a …

The Product Distribution And Structural Assignment Of The Monobromination Products Of 7-Hydroxy-2,2,5-Trimethylchroman-4-One, Marsha L. Dutkowski

Dissertations and Theses @ UNI

The compound 6-bromo-7-hydroxy-2,2,5-trimethylchroman-4-one (1) was desired for use in a project directed toward the synthesis of two novel depsidones. Since 7-hydroxy-2,2,5-trimethylchroman-4-one (2) was readily available, a number of bromination conditions were investigated in an attempt to find a regiospecific synthesis of 1. However, mixtures of varying composition of 1, 2, 3 and 4 were obtained under all the conditions tried. Final separation of 1 and its isomer 3 was accomplished by a mixture of chromatographic techniques. Structural assignment of the two brominated products 1 and 3 was made by a combination of carbon and proton NMR.

Language Concept Development In Differentially Educated Deaf Children: The Aural/Oral Versus A Simultaneous Approach, Sheril L. Doughman

Dissertations and Theses @ UNI

The present study was designed to compare the understanding of the fifty items on the Boehm Test of Basic Concepts (Boehm, 1971) in three groups of eight children ranging in age from 5-3 to 11-6 years. One group consisted of deaf children who were primarily educated in the aural/oral method (AOM). This approach is said to utilize residual hearing, amplification, speech, and speechreading while signing is discouraged or forbidden. The second group consisted of deaf children who were taught in a simultaneous method approach (SM). Natural gestures, fingerspelling, facial expression, body language, and a signed language system in conjunction with …

Attitudes Of Women Toward Menopause, Cheryl L. Freitag

Dissertations and Theses @ UNI

This study explored women's attitudes toward menopause in relationship to age, education, marital status, health status, history of hysterectomy, and level of income. The 254 female subjects were reached through different clubs and organizations. The main focus of the research was on a small Iowa city. Information on the six variables was obtained through a questionnaire. The Neugarten et al. (1963) Attitude-Toward Menopause checklist was utilized to determine the subjects' attitudes toward menopause. The checklist contained 34 statements to which the subjects indicated their level of agreement by using a Likert-type scale. Directions were given in group situations with the …

The Precision Of Teacher Judgments In The Identification Of Gifted Children, Ann Louise Neumann

Dissertations and Theses @ UNI

The purpose of this study was to determine some of the factors leading to the variability of teacher judgments in the identification of intellectually gifted elementary school children.

Subjects: The study was conducted with 14 female teachers having a total of 317 students in their classes. The schools were located in a small urban center in an agricultural region of northeastern Iowa.

Procedure: Teachers were asked to rate the children in their classes as to whether they should be classified as intellectually gifted. The research criterion used was a percentile score of 98 or higher on the Comprehensive Test of …

Summer Commencement [Program], July 29, 1977, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

Uni Schedule Of Classes, Summer 1977, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

Spring Commencement [Program], May 14, 1977, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.

The Annual Meeting Of The Iowa Academy Of Science April 22-23, 1977 [Program, 89th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Uni Schedule Of Classes, Spring 1977, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

The Alumnus, V62n1, February 1977, University Of Northern Iowa Alumni Association

The Alumnus

Inside This Issue:

-- Curriculum Lab - many things to many people
-- WANTED: Alumni for Reunions
-- Alumni Office Answering Service or 'We keep getting fund-raising letters. Why?'
-- News Notes
-- Alumni Association Trips

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Two New Nsta Publications

Iowa Science Teachers Journal

The following publications were recently introduced at the 25th Annual National Science Teachers Association's Convention held in Cincinnati.