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Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Aspects Of An Interior Stream Clam Midden From 1915 At Quasqueton, Buchanan County Iowa, Dennis W. Schlicht

Journal of the Iowa Academy of Science: JIAS

During clam surveys on the Wapsipinicon River in 1991 buried clams were observed in a bank of the river at Quasqueton, Buchanan County, Iowa. An interview with the landowner revealed that the clams were from a 1915 local clamming operation. Excavation and examination of many of the clams reveal interesting differences in species composition and size, when compared to more recent specimens from the river. Observations on the midden were recorded, species determinations were made and measurements were taken. Comparisons are made to two other modern surface surveys on the river. Differences were observed in both species composition and shell …

Dual Language: It's Effectiveness And How It Impacts Learning With Regards To Science Taught Thematicly In Elementary, Elsa J. Gonzalez

All Graduate Projects

The primary purpose of this project is to develop a month long integrated thematic unit for 2nd graders in a dual language program that address research findings in the area of effective student learning in dual language programs. Incorporation of science methodology, ESL strategies, and thematic teaching are also researched for effectiveness and addressed in the project. Dual Language and its effectiveness will also be compared to other bilingual programs. Dual language with appropriate implementation increases student achievement in learning a second language (Kirk, 2002).

Test 1869: John Deere 5525 Diesel 12-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA

The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.

EXPLANATION OF THE TEST PROCEDURES

Purpose

The purpose of …

Iowa Academy Of Science 117th Annual Meeting [2005]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

Contains information about the schedule and presentations for the 2005 annual meeting of the Iowa Academy of Science.

Test 1866: John Deere 5225 Diesel 9-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA

The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.

EXPLANATION OF THE TEST PROCEDURES

Purpose

The purpose of …

Nebraska Summary 572: Case-Ih Jx1095c Diesel 12-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA

The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.

EXPLANATION OF THE TEST PROCEDURES

Purpose

The purpose of …

Test 1860: Challenger Mt835b Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Mathematics Teacher Specialists In Virginia: A History, L. D. Pitt

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Explicit Reflective Nature Of Science Instruction: Evolution, Intelligent Design, And Umbrellaology, Lawrence C. Scharmann, Mike U. Smith, Mark C. James, Murray Jensen

Department of Teaching, Learning, and Teacher Education: Faculty Publications

The investigators sought to design an instructional unit to enhance an understanding of the nature of science (NOS) by taking into account both instructional best practices and suggestions made by noted science philosopher Thomas Kuhn. Preservice secondary science teachers enrolled in a course “Laboratory Techniques in the Teaching of Science” served as participants in action research. Sources of data used to inform instructional decisions included students’ written reaction papers to the assigned readings, transcribed verbal comments made during class discussions and other in-class activities, and final reflection essays. Three iterative implementations of the instructional unit were attempted. The objectives of …

Lights, Camera, Inquiry!: Setting The Stage For A Year Of Inquiry, Brandon Schrauth

Iowa Science Teachers Journal

This article describes my own inquiry. As I work to prepare and start a new school year. I show how I consider the classroom environment to have a strong connection to the success of inquiry in the science classroom. I describe how I use the process of inquiry as a starting point and how I use specific actions to create an environment that pushes students to move beyond restating known information. Finally, I address the need for a teacher's own change and the importance for our own risk-taking behaviors. This article promotes National Science Education Content Standards A and B, …

A Penny Saved Is A Penny Learned!, Daniel Bergman

Iowa Science Teachers Journal

This article discusses modifying a specific activity so that it promotes scientific inquiry, cooperative learning, accurate and explicit nature of science understanding, and appropriate assessment. It features a brief description of the original "cookbook" activity and a subsequent adaptation to create an inquiry-based lesson. The activity uses ordinary pennies to teach fundamental concepts such as density and indirect measurements. Extension activities for chemistry students could feature chemical reactions and metal activities. This article promotes National Science Education Content Standards A, B, and G, and Iowa Teaching Standards 1, 2, 3, 4, 6, and …

Introducing Students To Polar And Non-Polar Interactions Through Inquiry, Jerrid Kruse

Iowa Science Teachers Journal

Almost half of all chemistry teachers do not use inquiry in their classroom. Teachers cite classroom management, safety, and workload as reasons for not implementing inquiry techniques in their classroom (Deters, 2004). These teachers may resist laboratory-based inquiry finding it too daunting for themselves and their students. However, both students and teachers can progressively move to laboratory-based inquiry by first starting with less demanding science inquiry. This article describes an inquiry atmosphere created in a discussion classroom setting where students only minimally interact with materials. Students investigate macroscopic properties of water and hexane at their desks and the teacher performs …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

The Unionid Mussels (Mollusca: Bivalvia: Unionidae) Of Missouri River Floodplain Ditches In Fremont County Southwestern Iowa And Atchison And Holt Counties Northwestern Missouri, Ellet Hoke

Journal of the Iowa Academy of Science: JIAS

A survey of ditches in the Missouri River floodplain in southwestern Iowa and northwestern Missouri resulted in the recovery of nine unionid mollusk species. The floodplain ditches may provide valuable habitat for mussels in a region that has suffered a tremendous decrease in productive aquatic habitats over the past sixty-eight years. Additional survey activity is needed to determine the complete inventory of unionid mollusks in the area.

Summer Soil Temperatures On Algific Talus Slopes In Northeast Iowa, Tom R. Cottrell, Kyle S. Strode

Journal of the Iowa Academy of Science: JIAS

Soil temperatures at 15 cm depth were recorded on a single occasion at multiple grid points on two algific talus slopes during the summer of 1999. To represent and compare soil temperatures over a wider area, soil temperatures were measured (less intensively) at five other algific slopes and three non-algific forested slopes. Algific slopes appear to have greater variation in soil temperatures than non-algific sites. Spatial variation in algific slope soil temperatures ranged from 4-25°C. During the 10 day sample period temporal variation in air temperature at a nearby weather station had a similar range. Isotherm plots reveal a heterogeneous …

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Index For The Journal Of The Iowa Academy Of Science Volume 112

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Discordant Harmonies In Fingernail Clam Populations (Musculium Transversum) Of Mississippi River Backwater Lakes, Jim Eckblad

Journal of the Iowa Academy of Science: JIAS

The populations of Musculium transversum from 8 backwater lakes have been studied over a 29-year period based upon over 440 grab samples. These lakes in Navigation Pool 9 of the Upper Mississippi River (UMR) range in size from 2 to 255 hectare surface area, mean depths from 0.2 to 0.9 meters, with mean water exchange times from 0.5 to almost 57 hours. Samples from the 1989-91 period suggested summer Muscu!ium populations had declined to about 9 percent of their mid-1970 levels. Deterministic models have attempted to explain this decline. More recent sampling suggests a substantial recovery of Musculium populations (mid-summer …

Threatened By Industry, Saved By Science: Mussel Propagation At The Fairport Biological Laboratory, James Pritchard

Journal of the Iowa Academy of Science: JIAS

During the 1890s, people on the Mississippi River exploited mussel populations to support a thriving button industry. Within a brief time, they noticed significant declines in mussel populations, and called on the U.S. Bureau of Fisheries to save the resource. This paper discusses mussel propagation studies, techniques, and activities carried on in association with the Fairport Biological Laboratory (Iowa) from about 1908 to 1932. While scientists developed sophisticated techniques and had success in mussel propagation, changing habitat conditions in the river (caused mainly by pollution and dam construction) meant limited success in rescuing mussel stocks, while the introduction of plastic …

117th Annual Meeting Of The Iowa Academy Of Science [Program, 2005], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 4
General Session Presentations --- 6
Symposia Programs --- 9
General Poster Session Program --- 10
Cellular, Molecular and Microbiology Special Poster Session Program --- 12
Section Meeting Programs (Alphabetical by Section) --- 13
2005 IAS Awards and Recognition --- 18
Geology Field Trip Details --- 19
Section Meeting Abstracts (by Section) --- 20
Symposia Abstracts --- 64
Author Index --- 68

Ua64/2 The Challenge: Magazine Of The Center For Gifted Studies (No. 14, Winter 2005), Center For Gifted Studies, Tracy Inman Editor

Gifted Studies Publications

No abstract provided.

Methods For Marine Ecosystems Research Through The Use Of Pdas With Preservice Teachers, Antoinette P. Bruciati, Maria Lizano-Dimare

Education Faculty Publications

Science teachers are charged with the task of providing students in grades K-12 with opportunities that will enable them to make sense of science and develop habits of mind. One goal of science education is to prepare well-rounded citizens who are scientifically literate. Through inquiry-based learning, students formulate questions, perform investigations, and construct new understandings.

It is important for preservice science teachers to be introduced to current techniques, discoveries, and debates in the field of science. The use of personal digital assistants (PDAs) can provide K-12 students with increased opportunities for exploring and learning through scientific investigations. In order for …

A Reforma Do Ensino De Ciências No Ensino Secundário Brasileiro Nas Décadas De 1960 E 1970 [Science Education Reform In Brazilian Secondary Schools In The 1960s And 1970s], Karl M. Lorenz

Education Faculty Publications

Na segunda metade do século dezoito, foi transplantado para o Brasil um paradigma que focalizava no processo da investigação científico no ensino das Ciências Naturais na escola secundária. O paradigma teve origem nos Estados Unidos em resposta às criticas internas referentes ao ensino secundário e aos acontecimentos internacionais. Inicialmente sustentado por subvenções estrangeiras, e mais tarde patrocinado pelo ministério da Educação, um movimento surgiu no Brasil que objetivava a produção e divulgação de materiais didáticos que incorporassem os princípios desse paradigma. Este trabalho descreve a trajetória do paradigma e do movimento reformista do ensino de Ciências, desde sua origem nos …

Mathematics Specialists Definition

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Executive Summary – Building The Case: Mathematics Specialists

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Mathematics Specialists In Norfolk Public Schools, D. Walston

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Mathematics Professional Development That Focuses On Student Achievement: A Parallel Case Example, N. R. Iverson

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.