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University of Northern Iowa

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Articles 2491 - 2520 of 4046

Full-Text Articles in Science and Mathematics Education

Metric Conversions, Linda B. Holm Jan 1978

Metric Conversions, Linda B. Holm

Iowa Science Teachers Journal

After considering several approaches to the problem of teaching metric conversions, I developed an approach of my own which seems easy for students to work with and understand.

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Dates To Remember Jan 1978

Dates To Remember

Iowa Science Teachers Journal

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

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A Burning Question Jan 1978

A Burning Question

Iowa Science Teachers Journal

If you burn logs in your fireplace to keep warm in the winter, can you burn antilogs to keep cool in the summer?

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The Junior Academy Jan 1978

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.

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Organizing A Rock And Mineral Club (Part Ii), Ron Bonstetter Jan 1978

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.

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New Environmental Education Resource Jan 1978

New Environmental Education Resource

Iowa Science Teachers Journal

Environmental Education Process for Iowa Schools by Bernard Clausen and David McCalley of the University of Northern Iowa has been published recently by the Curriculum Division of the Iowa Department of Public Instruction.

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Westinghouse Science Talent Search Jan 1978

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.

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Decapods Of Iowa (Part I), Gary Phillips Jan 1978

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 …

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The Metric "Indy", Janice Brandt, Daniel Yates Jan 1978

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.

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Entry Into Elementary Science Through Live Animals, Stanley L. Weinberg Jan 1978

Entry Into Elementary Science Through Live Animals, Stanley L. Weinberg

Iowa Science Teachers Journal

Some years ago I did a series of animal behavior film loops for the Ealing Company. The film loops sold well. Their distribution has been taken over by a subsidiary of CBS and they still sell. The series has been a commercial success. But I judge it a pedagogical failure.

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Iowa's Diatoms: Part I (Collection), James Hungerford Jan 1978

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 …

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When You've Reached The Last Straw Jan 1978

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.

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New Scientist Jan 1978

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.

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Learning To Write Chemical Equations Is Something Else, Robert W. Hanson Jan 1978

Learning To Write Chemical Equations Is Something Else, Robert W. Hanson

Iowa Science Teachers Journal

Chemical equations are the stock-in-trade for much of what is expected of students in the first semester of college chemistry. Knowing how to read them, balance them, and interpret them in terms of molar ratios or stoichiometry is one thing; being able to write them from chemical knowledge or from experimental observations is another.

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Cover - Front Matter - Table Of Contents Jan 1978

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

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The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Introduction, James L. Christiansen, Russell R. Burken Jan 1978

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Introduction, 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.

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The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Turtles, James L. Christiansen, Russell R. Burken Jan 1978

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.

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The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Lizards, James L. Christiansen, Russell R. Burken Jan 1978

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.

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The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Complete Issue, James L. Christiansen, Russell R. Burken Jan 1978

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Complete Issue, 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.

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Geology Teaching Aids Jan 1978

Geology Teaching Aids

Iowa Science Teachers Journal

The U.S. Geological Survey has compiled two packets of geology teaching aids.

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Float, Sink, Think!, Timothy Cooney Jan 1978

Float, Sink, Think!, Timothy Cooney

Iowa Science Teachers Journal

The following is a typical question asked at the end of physics units dealing with buoyancy: "A barge loaded with scrap iron is in a canal lock. The captain orders his crew to dump all of the scrap iron overboard. What happens to the water level in the lock?" I have asked this type of question to both high school and college physics students. Of course, answers are given which predict an increased, a decreased , or an unchanged water level.

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A Quick Camera Obscura Jan 1978

A Quick Camera Obscura

Iowa Science Teachers Journal

Take a Pringles potato chip can and a Planters potato chip can. Poke a hole in the bottom of each.

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Free Units Jan 1978

Free Units

Iowa Science Teachers Journal

The following units can be obtained free from the U.S. Department of Energy.

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

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.

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Cover - Front Matter - Table Of Contents Jan 1977

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

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A Philosophical Approach To The Meaning Of Science, James Slock Jan 1977

A Philosophical Approach To The Meaning Of Science, James Slock

Iowa Science Teachers Journal

It would seem to be a rat her simple matter to define what science is and how it operates. After all, a good portion of our high school and college careers have been spent in science classrooms and laboratories. Possible answers might be that science is an organized body of knowledge and that it operates by discovering the truth about nature through the use of scientific method. It seems equally simple to visualize science as a massive pile of bricks with each scientist adding a new brick each time he discovers a new fact or invents a new theory. Further, …

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Two New Nsta Publications Jan 1977

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.

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Mca Award Jan 1977

Mca Award

Iowa Science Teachers Journal

The Manufacturing Chemists Association (MCA), again in 1978, will present awards to high school, two-year and four-year college chemistry and chemical engineering teachers.

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Mood Rings Jan 1977

Mood Rings

Iowa Science Teachers Journal

The "stone" of the mood ring, which supposedly changes colors as your emotions change, is composed of photographic paper similar to that used in the construction of digital thermometers that change color as temperatures fluctuate.

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Snow (Part I), Janet Morley Jan 1977

Snow (Part I), Janet Morley

Iowa Science Teachers Journal

When most of us think of snow, we think of snowmobiling, skiing, shoveling or poor driving, but there is much more to snow than this. Have you ever really looked at snow?

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