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The Mole Hill Mnemonic, Mike Williams

Iowa Science Teachers Journal

The concept of a mole in chemistry is difficult for many introductory students to understand. I have discovered a crutch which seems to help some students become operational while improving their understanding of the abstraction called a mole.

The Heat Of Fusion Of Ice, Walter J. Gohman

Iowa Science Teachers Journal

Students have learned that when heat energy is added to any substance the temperature of this substance increases and, conversely, when heat energy escapes from the substance the temperature decreases. Based upon this concept, the idea of the heat of fusion of ice does not make sense. The idea that each gram of ice a 0° C can absorb 80 calories of heat energy and become a gram of water with the temperature still 0°C does not seem logical. The student may accept the “if you say so" approach, but some meaningful laboratory data will be more convincing. The usual …

New Botany Text

Iowa Science Teachers Journal

Dr. John D. Dodd, Professor of Botany and Plant Pathology at Iowa State University, has just published a new botany text suit able for a one term course in general botany. Course Book in General Botany, published by the Iowa State University Press, emphasizes descriptive rather than the physiological aspects of plants.

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Drought: A Time To Teach, Owen Primavera

Iowa Science Teachers Journal

Is there a pattern to weather? Can drought be predicted with any degree of accuracy? These questions have been pondered by climatologists for years and make interesting topics for classroom discussion.

A Negative Sodium Ion?

Iowa Science Teachers Journal

Chemistry textbooks will have to be rewritten again because of a new discovery at Michigan State University.

A Noteworthy Physics Program: Is Individualization The Answer?, Walter J. Gohman

Iowa Science Teachers Journal

My career as a physics teacher began in 1938. This was the year that I was assigned to teach my first physics class. My undergraduate field was biology. I needed something to compensate for my very inadequate background in physics.

Milkweeds

Iowa Science Teachers Journal

Recent studies indicate that seedlings of some plants, when subjected to aqueous extracts of milkweed leaves, have their growth inhibited.

An Inquiry Into Tides, Darrel Hoff

Iowa Science Teachers Journal

Classic earth science textbooks present a rather generalized treatment of the topic of tides, but to the majority of mid-westerners the descriptions are largely without intrinsic meaning because of the lack of firsthand experience with marine tides. The suggestion contained herein provides a vicarious experience with tides for landlocked Iowans that will hopefully stimulate discussion resulting in an improved understanding of tidal phenomena.

Nature's Notebook

Iowa Science Teachers Journal

A new publication is now available to upper-elementary teachers desiring nature-centered materials and activities for classroom teaching.

Eastern Iowa Science And Engineering Fair

Iowa Science Teachers Journal

The 19th Eastern Iowa Science and Engineering Fair will be held March 18 and 19, 1978.

Epistemology To Ontology, Charles R. Hampton

ACMS Journal 2004

This paper argues for mathematicians thinking about the philosophy of math, especially Christians. It briefly sketches the limitations of formalism, intuitionism, and logicism and uses Christian concept of creation to argue that one can take the best of each of these philosophies and avoid the pitfalls. It also argues for the real existence of mathematical objects apart from the human mind.

Recent Problems In The Foundations Of Mathematics, Terence H. Perciante

ACMS Journal 2004

This paper examines the foundational crises that have haunted twentieth-century mathematics, beginning with a brief review of the effects generated by Gauss, Lobachevsky, and Bolyai who each developed non-Euclidean parallel axiom. Though of mathematical interest in their own right, the significance of the new geometries was greatly magnified when it was discerned that they could be used to adequately model physical space, even to the extent that Einstein’s theory of relativity later employed as its model a non-Euclidean geometry developed by Riemann. The question that obviously presented itself was how could any given geometry be called true when it and …

Recent Parallels Between The Philosophy Of Science And Mathematics, Joseph Spradley

ACMS Journal 2004

Following World War I European philosophy of science formed an alliance with mathematics culminating in an attitude of certainty and autonomy that rejected all non empirical claims to truth and purported to make all science presupposition less. The rise and fall of logical positivism has been one of the major themes of of twentieth century thought and illustrates the danger of placing too much emphasis on science and mathematics as an ideal for all knowledge. The restriction of rational inquiry to the modes of scientific verification and the processes of mathematical logic was far too confining for the containment of …

Iowa Academy Of Science Leadership Directory, 1977-78, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Officers and Directors ... 2
Section Chairpersons ... 3
Standing Committees ... 6
Special Committee ... 15

The 1977 Outstanding Service Award, Roy Unruh

Iowa Science Teachers Journal

The Iowa Science Teachers Section has selected Dr. Robert E. Yager, Professor of Science Education, and Head of the Science Education Department at the University of Iowa, as its recipient of this year's Outstanding Service Award.

The Development Of A Nongraded Mathematics Program For The Intermediate Grades In An Open Concept Middle School, Timothy D. Paschal

All Graduate Projects

During the spring of 1972 the teaching staff of Fairview Middle School, Central Kitsap School District, was engaged in re-examining its methods of instruction. The opportunity existed to facilitate this re-examination through applied administrative techniques. Beginning in the Spring of 1972, and continuing through the Spring of 1974, the teaching staff, with the aid of this writer, worked to reorganize and improve its methods of instruction

The purpose of the project was to apply those administrative techniques which would foster and sustain a motivational level, within the teaching staff, sufficient to reorganize and improve their methods of instruction. The thrust …

Try It

Iowa Science Teachers Journal

Songbirds sometimes end it all by mistakenly dashing into picture windows or sliding doors.

Outstanding Iowa Jr. Academy Of Science Papers, Doug Farris, Renae Steinke, Steve Isaacson

Iowa Science Teachers Journal

Listed are the abstracts and authors of the three top papers presented at the Iowa Jr. Academy of Science Meeting held at Drake University on April 23 and 24, 1977. The ISTJ Advisory Board wishes to congratulate the winners and their teachers for their outstanding efforts.

Large-Scale Industrial Applications Of Solar Energy, W. C. Dickinson

Iowa Science Teachers Journal

Research on solar energy sponsored by the U.S. Research and Development Administration (ERDA), at the Lawrence Livermore Laboratory, has concentrated on finding and developing techniques that can be made economically competitive with fossil fuels and can be applied by industry on a large scale. The difficulty lies in making solar energy competitive, not in identifying large-scale application. Table 1 suggests the widespread need for large-scale applications.

A Solar Water Heater, John Bridgenell

Iowa Science Teachers Journal

The sketch (Fig. 1) and photograph (Fig. 2) show a very simple solar water heater made from readily available parts.

© Copyright 1977 By The Iowa Academy Of Science

Iowa Science Teachers Journal

The American Chemical Society and the National Science Teachers Association have been constructing, standardizing and disseminating examinations in high school chemistry since 1953.

The Metric System

Iowa Science Teachers Journal

An informational fact sheet, Metric Units for Everyday Use, is free upon request from the U.S. Metric Association.

New Istj Associate Editors

Iowa Science Teachers Journal

Three Associate Editors have been selected by the Iowa Science Teachers Journal's Advisory Board. Gary Downs, of Ames, has agreed to serve as Associate Editor in Elementary Science Education. Tom Scott, of Des Moines, has agreed to serve as Associate Editor in Junior High Science Education. Darrel Hoff, of Cedar Falls, has agreed to serve as Associate Editor in Earth Science Education.

Iowa Plan For The Statewide Use Of The Computer For Education, Dean D. Crocker

Iowa Science Teachers Journal

The timely information now available in the application of high speed computer techniques to education may benefit students, school administrators, supervisors and other decision makers alike. Science teachers and students may find assistance through the use of instructional and career guidance applications. Education administrators, supervisors, teachers and other community and state planners can benefit by using the available data in projecting alternative solutions for critical planning issues.

Freedom!, W. T. Lippincott

Iowa Science Teachers Journal

Just about the easiest thing we could do these days is to give in to student demands that they be taught according to their own standards, needs, and perceptions, and in ways that will least interfere with their life style.

Are Young People More Intelligent Than Older People?

Iowa Science Teachers Journal

The brain of a ninety-year old may consist of only two-thirds the number of cells found in that of a twenty-year old.

Honors To Iowans, Dave Fagle

Iowa Science Teachers Journal

Two Iowa science educators (Sondra Waltz and Robert Yager) recently received honors at the National Convention of the National Science Teachers Association held during March, 1977, at Cincinnati, Ohio. These honors were bestowed upon the recipients because of their excellence in teaching and distinguished professional leadership.

Investigating Iowa's Weeds, Paul G. Jantzen

Iowa Science Teachers Journal

The term "weed" is often defined as a plant out of place. A. C. Martin has complained that this definition reflects human bias and that pest plants are out of place only with respect to man's immediate purpose. In nature's scheme, they often serve useful functions such as providing food for wildlife throughout the growing season and covering barren soil, thus preventing soil erosion. Judging from their competitive success with many so-called desirable species, they are anything but out of place.