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Eighteen Years Of The Hawkeye Science Fair, Dean Stroud

Iowa Science Teachers Journal

Pre-planning for the first Hawkeye Science Fair began in 1958 when representatives of the Iowa Medical Society, the Des Moines Register and Tribune Co., and Drake University met to discuss the feasibility of organizing to sponsor a science fair. Later, the Scanlon Medical Foundation was added to the list of sponsors. The first fair was held in the spring of 1959.

Purebred?, Wilmer J. Miller

Iowa Science Teachers Journal

A notion of "purity" and connotations of cleanliness, neatness, stability, uniformity, worthiness and admirable values click through our mental processes. After all, that's what we learn in biology, especially the genetic section, don't we? Well, maybe it's colored a bit by the horticulturalists' and stock breeders' influence, and dog and cat fanciers who want pedigree papers and conformity to some arbitrary standard. Poultry and small pet fanciers have about the same attitude, but rely less on papers. But "purebred" is jargon--at worst meaningless in the context of conflicting usages, and contemptuous in use by a more sophisticated group--breeders or teachers …

Chem Ed 77

Iowa Science Teachers Journal

CHEM ED 77 is a conference for classroom chemistry teachers to be held 22-25 August, 1977, at the University of Waterloo, Waterloo, Ontario, Canada.

More Snow Jobs, Paul Joslin

Iowa Science Teachers Journal

On the first day of snow, when the attention of children is obviously distracted from normal classroom procedures, have them bundle up and go outside. Once outside, have the students follow you in a line and form a circular path. You can then use the circle formed in the snow, to teach or review concepts associated with motion, time, direction, fractions and geometry.

Your Population Is Raisin!, Joe Moore

Iowa Science Teachers Journal

Sampling techniques are used to quickly estimate the size of populations within given sets.

Officers, Iowa Academy Of Science; Officers, Editors, Regional Directors, Iowa Science Teachers Section; Advisory & Technical Review Boards

Iowa Science Teachers Journal

No abstract provided.

Bioassay And Corn Coleoptiles, S. Lane Wilson

Iowa Science Teachers Journal

In the 1930s, Dr. F. W. Went and R. Bonner conducted investigations into the factors regulating cell elongation in plants and their subsequent effect on plant growth. These studies eventually led to the isolation of a plant growth hormone called auxin. Auxin was finally identified chemically as indole-3-acetic acid or IAA.

Plant Growth Hormones

Iowa Science Teachers Journal

The farmer of the future may one day spray chemicals that would simultaneously increase growth of specific crops while killing competing weeds, according to Dr. Robert Bandurski of Michigan State University.

New Istj Service

Iowa Science Teachers Journal

In order to provide ISTJ authors with wider readership, all articles published in the Iowa Science Teachers Journal will be abstracted in Resources in Education in the ERIC system.

From The Editor's Desk

Iowa Science Teachers Journal

The lead article in this issue suggests that, in the near future, computer outlets may be available in many more schools in Iowa. The utilization of computers in science classrooms has been well documented. The different ways that computers can be used in science classrooms are limited only by the creative imagination of science teachers. Computers are even being used to make out examinations.

Two New Nsta Publications

Iowa Science Teachers Journal

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

Reaction Time

Iowa Science Teachers Journal

Have 10 or more students hold hands in a line. Squeeze the hand of the first student, then he squeezes the hand of the second student, etc.

A Study Of The Use Of The Computer As A Problem-Solving Tool In An Introductory Course In College Physics, Roland L. Meade

Dissertations

No abstract provided.

A Numerical Solution For The Ultimate Strength Of Tubular Beam-Columns, Arnold L. Wagner

Dissertations and Theses

To provide a basis for the development of interaction curves for tubular beam-columns of annular cross section, a general purpose beam-column computer program is developed, and used to determine ultimate load capacities. The paper presents the analytical model and the computer method. The analytical results are compared with published test data as well as experimental data obtained as part of this project.

Test 1229: Allis-Chalmers 7580 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

A Study Of Student Evaluations Of Science Instructors In Small Liberal-Arts Colleges, J. Philip Mclaren

Dissertations

No abstract provided.

Student Preferences For The Hutchings' "Low Stress" Versus The Conventional Addition Algorithm Under Conditions Of Differentially Increasing Response Effort With And Without Reinforcement, Carolyn Louise Gillespie

Masters Theses

No abstract provided.

A Study Of Forward Vs. Backward Chaining, Using Hutching's "Low Stress" Algorithm In Simple And Complex Addition Problems With Third Graders, Linda Sue Clark

Masters Theses

No abstract provided.

A Comparison Of The Hutchings' “Low-Stress" And Current Addition Algorithms For Speed And Accuracy In Two School Settings With Regular And Special Education Children, Laurence E. Rudolph

Masters Theses

No abstract provided.

A Comparison Of Calculation Speed And Accuracy On Two Levels Of Problem Difficulty Using The Conventional And Hutchings' "Low Stress" Addition Algorithms And The Pocket Calculator With High And Low Achieving Math Students, Leslie S. Zoref

Masters Theses

No abstract provided.

A Study Of The River : Social Studies As The Core Of The Curriculum For Five And Six Year Olds, Carol Yahr Tucker

Graduate Student Independent Studies

Using social studies as the core of the curriculum is an effective educational framework for five and six year olds. When this curriculum starts with the children's life experiences and goes on to study some aspect of their community or environment, children can begin to understand the interconnectedness of the adult world. Young children feel the excitement of learning when they immerse themselves in a study; they find that learning can be a vital process related to their needs and experiences, rather than a dry transfer of skills and pre-existing bodies of knowledge.

Test 1211: Case M-B 4/94 Diesel (Unimog), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS Each tractor is a production model equipped for common usage. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operator station. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures must conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crankcase is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The fuel …

Abstracts Of Papers, Iowa Academy Of Science [88th Meeting], April 10, 1976, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

The Annual Meeting Of The Iowa Academy Of Science April 9-10, 1976 [Program, 88th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

General Sessions:
Observations on Science and Policy Making - Dr. Richard Scribner, AAAS --- 5
Experiences as a Congressional Science Fellow - Dr. Pamela Ebert, NRC --- 5
Nuclear Energy - Dr. Dixy Lee Ray --- 7
Symposia and Joint Sessions:
Current Status of Cancer Research --- 9
Cedar River Ecology --- 9
Waste Disposal in Iowa --- 10
Relationship Between The Applications of Mathematics and the Teaching of Mathematics --- 11
What Does Industry Want From the Physical Science Graduate? --- 11
Social Hour and Banquet --- 7
Workshops on Energy and The Environment --- 10
Academy Business …

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Citizen's Workshop On Energy And Environment

Iowa Science Teachers Journal

The University of Northern Iowa Chemistry Department will be conducting a series of Citizens' Workshops on Energy & Environment in Iowa during the coming academic year.

Holography: Capturing The Third Dimension, Michael Timmons

Iowa Science Teachers Journal

Holography, the three-dimensional recording of interference patterns on film has unlimited possibilities in the fields of science, art, technology, and media. Three types of holograms, the "flat" or plane, circular, and white light, are presently being produced successfully and inexpensively in the high school situation. The novelty of holography arouses curiosity while allowing the student to experience the application of interference phenomenon.

The Foreign Exchange

Iowa Science Teachers Journal

The National Science Teachers Association is attempting to locate persons in the United States who are interested in corresponding with science teachers in other countries and/or hosting a foreign student or visiting educator.

Nsta To Assist Local Drive-In Conferences

Iowa Science Teachers Journal

Individual NSTA members, chapters, and associated groups interested in sponsoring local or drive-in conferences are invited to write in for application forms.

Mnemonics, Mike Williams

Iowa Science Teachers Journal

You can help students remember and keep in order the levels of biological classification by using the following old Dial soap commercial.