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Articles 1231 - 1260 of 2306
Full-Text Articles in Science and Mathematics Education
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
Cover - Front Matter - Table Of Contents
Iowa Science Teachers Journal
No abstract provided.
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.
Cover - Front Matter - Table Of Contents
Cover - Front Matter - Table Of Contents
Iowa Science Teachers Journal
No abstract provided.
Drought: A Time To Teach, Owen Primavera
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
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
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.
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.
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
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.
The 1977 Outstanding Service Award, Roy Unruh
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.
Practical Application Of Basic Research In Hydrogen Bonding, Paul E. Rider
Practical Application Of Basic Research In Hydrogen Bonding, Paul E. Rider
Iowa Science Teachers Journal
It has become common in recent years for non-scientists to react rather disdainfully toward research projects that ad dress what appear to them to be highly specialized areas of interest and which, from their titles, offer little good for mankind. Those of us who spend great portions of our waking hours engrossed in these studies tend to over-react in the other direction by holding our endeavors in an exaggerated esteem that tends to preclude an appropriate assessment of their essential merit. As is usually the case, the proper perspective lies somewhere in between.
Ice - The Common, Yet Strange Substance, Dennis Barnaal
Ice - The Common, Yet Strange Substance, Dennis Barnaal
Iowa Science Teachers Journal
Ice has been the focus of studies by physicists, chemists, geologists and even biologists for many years. Ice represents a basic example of the hydrogen bond which is present in many important organic molecules. In some parts of the world, ice or permafrost is an important constituent of construction. The movement of glaciers and formation of hailstones represent aspects of ice physics. Cell water in living cells appears to be ice-like. However, ice is still not fully understood. An international conference on the physics and chemistry of ice is held approximately every four years.
Try It
Iowa Science Teachers Journal
Songbirds sometimes end it all by mistakenly dashing into picture windows or sliding doors.
Snowflakes You Can Keep!, A. C. Haman
Snowflakes You Can Keep!, A. C. Haman
Iowa Science Teachers Journal
Are all snowflakes the same shape? To answer this question have students try the following procedure, used for the preservation of snowflakes, outlined in a recent Kalamazoo Nature Center Newsletter.
Outstanding Iowa Jr. Academy Of Science Papers, Doug Farris, Renae Steinke, Steve Isaacson
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.
New Units Available
Iowa Science Teachers Journal
Agricultural Research Service scientists and high school teachers have combined their skills to create innovative science units.
Another Christmas Experiment, Glen Loveridge
Another Christmas Experiment, Glen Loveridge
Iowa Science Teachers Journal
In the December 1974 edition of Iowa Science Teacher's Journal, p. 24, I described a peanut brittle lab which could be done just before Christmas. This year I would like to describe a Candy Cane Lab.
"Fore" Physics, Rick Zehr
"Fore" Physics, Rick Zehr
Iowa Science Teachers Journal
I have developed an activity which I would like to share, in the hope that it might prove educational as well as enjoyable. In Chapter 1 of the Project Physics there is a brief history of photography, which in itself is quite interesting, but one picture specifically lends itself to additional study. The photograph of the golfer provides the basis for this activity. The students are asked to work in small groups to determine the speed of the ball.
Large-Scale Industrial Applications Of Solar Energy, W. C. Dickinson
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
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.
Energy
Iowa Science Teachers Journal
If energy was delivered to your door like milk -- today, you would have had 19 half gallons of oil, 14 half gallons of natural gas, and 46 pounds of coal on your doorstep.
Aging Iowa Trees, Roger Q. Landers
Aging Iowa Trees, Roger Q. Landers
Iowa Science Teachers Journal
How old is this tree? Or that one? Unanswerable questions to most people, unless they are there when it started growing, but with proper techniques, equipment, and a bit of skill (or luck), it is not so difficult to determine the age of a tree. Because trees grow in girth by the addition, each year, of a layer of wood just inside the inner bark, these layers can be counted when they are clearly exposed. We usually see the layers exposed as rings on the surface of a stump, hence the study of aging trees is referred to as "tree-ring" …
Iowa Landforms
Iowa Science Teachers Journal
A new publication, A Regional Guide to Iowa Landforms, is now available as the Iowa Geological Survey Educational Series 3.
Eighteen Years Of The Hawkeye Science Fair, Dean Stroud
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.
© Copyright 1977 By The Iowa Academy Of Science
© 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.
Purebred?, Wilmer J. Miller
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.