Science and Mathematics Education Commons^™

A Study Of How Well Lower Secondary Students Use Calculators To Solve Computation Problems, Rachel Shipley

Theses : Honours

The main aim of this study was to determine how well students used their calculators to obtain the correct answer to a problem (effective calculator use). The study has also considered whether students used their calculators as efficiently as possible, in order to answer questions expediently (efficient calculator use). This research made use of a Calculator Computation Test and Answer Sheet which was used for checking the accuracy of subjects' answers as well as recording which keys they pressed to obtain their answer. These were developed for the study. The subjects were drawn from Years 8, 9 and 10 of …

Identification And Distribution Of Masked And Hayden's Shrews (Genus Sorex) In Iowa, Howard P. Whidden, Alison W. Ray, John B. Bowles

Journal of the Iowa Academy of Science: JIAS

Masked shrews (Sorex cinereus) and Hayden's shrews (S. haydeni) are both reported from Iowa, but the two species are difficult to tell apart and their relative distributions in Iowa have been unclear. We took 13 skull measurements and examined 2 qualitative features on more than 300 specimens of Sorex from Iowa. The vast majority of our specimens could be identified easily by cranial measurements, and more than half could be identified by the relative position of the maxillary plate. We found no evidence for intergradation between the two species. Masked shrews are present throughout most of Iowa, whereas Hayden's shrews …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Soybean Canopy Gap Influence On Velvetleaf Seed Production, Shawn R. Wright, Micheal D. K. Owen, Douglas D. Buhler

Journal of the Iowa Academy of Science: JIAS

Gaps in the soybean row provide locations for velvetleaf (Abutilon theophrasti) plant growth. Gap width, and velvetleaf plant location within the gap, were investigated for effect on seed production. There was no significant difference in velvetleaf capsule production between plants that grew either centered in a gap or at the western end of a gap in east-west oriented soybean rows. Also, there was no difference in plant survival, emergence through the soybean canopy, flowering, locule number per capsule, or average seed weight of velvetleaf based on gap width. However, there was a difference in capsule production based on gap width. …

Book Review - North American Box Turtles: A Natural History, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

While I have only studied box turtles for four years, from the beginning, I was quickly impressed at the many studies and observations that had been published on North American box turtles. At the same time, I was also frustrated by the lack of syntheses of the material. For the beginning researcher or interested layperson, organizing the studies into a cohesive whole was daunting, and I attempted my own loose compilation that took me most of a summer. However, there is now a new book that provides the background and overview that I sought. C. Kenneth Dodd, a longtime researcher …

Book Review - The Guide To Iowa's State Preserves, Cornelia F. Mutel

Journal of the Iowa Academy of Science: JIAS

The Iowa State Preserves System gives the highest protection afforded by law to sites "dedicated for maintenance as nearly as possible in [their] natural condition." To date, ninety sites have been dedicated as biological, geological, archaeological, scenic, or historic preserves, declaring that such use is the site's "highest, best, and most important use for the public benefit" (State Preserves Act of 1965). In a state as dramatically altered as Iowa, such remnants are of intense interest to professional and amateur naturalists of all inclinations, as well as to anyone who appreciates nature. Yet understanding the basic qualities of these preserve …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Effects Of Cattle Grazing On Woodlands In Central Iowa, Cathy Mabry

Journal of the Iowa Academy of Science: JIAS

Iowa's forests have undergone a dramatic decline in area since settlement by Europeans. Most of the remaining forests have been degraded by an assortment of human impacts, with cattle grazing the most prominent among them. Using a matched pairs study designed to control for environmental differences among plots, I examined the impact of cattle grazing on the forest understory, canopy trees, and tree regeneration. There were distinct groups of understory species associated with ungrazed and grazed plots. Species associated with ungrazed plots were all native and tended to be perennial herbs with fleshy roots. Ungrazed plots also had species preferring …

Science Safety Status In Iowa Schools, Gerlovich A. Jack, Rahul Parsa, Bruce Frana, Theresa Stiner

Journal of the Iowa Academy of Science: JIAS

Between May and December 2001, 574 Iowa science teachers participated in a statewide science safety project supported by financial assistance from the Iowa Department of Natural Resources. Part one of the project focused on assessing the status of safety in Iowa secondary science programs. Part two was to provide teachers with information, tools, and training to address the identified needs. Three safety concerns were identified: one was associated with the age of lab facilities and two were related to safety training of teachers.

Awards And Recognition, Iowa Academy Of Science, 2002

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.

Using Authentic Learning To Teach Basic Technology Skills, Steven Burken

Graduate Research Papers

During the past decade, most school districts have been required to write technology plans that have included the goal that students will become technologically literate. Teachers and administrators have been challenged to teach technology skills that will help student solve problems in the work place. What has been commonplace is for schools to offer courses or units in which students acquire skills without applying them to real world problems. This paper takes a look at the literature and research surrounding the use of technology, and the learning of technology skills, in the framework of authentic learning.

Teaching Nctm Standards Through Subject Areas In The Kindergarten Classroom, Elizabeth Tata O'Neil

Graduate Research Papers

Teachers are being expected to provide a full range of experiences for their students. But in reality, many early childhood programs have reading readiness and literacy as the only focus. In many situations, mathematics instruction is an afterthought. Many students are not given quality instruction because little time in the school day is left, once language arts instruction is completed. This is even more true for students in half-day programs.

One way to alleviate this disparity is to incorporate math instruction within other subject areas. This can be achieved if teachers are educated in the National Council of Teachers of …

Teaching Mathematical Problem Solving In The Context Of Oregon's Educational Reform, Nicole R. Rigelman

Dissertations and Theses

Implementation of Oregon’s Educational Reform Act (HB 3565 and HB 2991) provides the context for this inquiry as its emphasis on problem solving has impacted mathematics teaching and learning throughout the state. Even though all Oregon teachers are responding to the same policy, their goals in teaching problem solving vary. These goals and these practices are influenced by the way teachers view the role of problem solving in the curriculum. Further, their practice is influenced by their knowledge and beliefs about mathematics content, teaching, learning, and the reform policy. The questions addressed in this study are: (1) What do exemplary …

The New Jersey Core Curriculum Content Science Standards Influence On The Scope And Sequence Of The High School Science Curriculum, Tena R. Wright

Seton Hall University Dissertations and Theses (ETDs)

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Authentic Field Ecology Experiences For Teachers, Marion Dresner, Andrew Moldenke

Environmental Science and Management Faculty Publications and Presentations

This paper will focus on one teacher field research experience situated in the Pacific Northwest

Development Of Principles For The Integration Of Technology Education In The Primary Curriculum In Botswana, Patrick Tlalelo Mmokele

Theses : Honours

Design and Technology is being taught in secondary schools in Botswana. This innovation began in junior secondary schools in 1989 and senior secondary schools in 1993. However it has not yet been introduced in primary schools. There have been some Design and Technology attainment targets which are outlined in the primary curriculum, but it is proposed that these do not fit well into the curriculum structure. This study seeks to investigate the principles upon which Design and Technology can be integrated into the primary curriculum in Botswana. Data for this study was collected through a review of related literature and …

Tests 2023 & 2024: Case Ih Jx 95 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 2097: Mccormick Mtx 110 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Nebraska Summary 383: Agco Rt130 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1805: John Deere 9520 18 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1804: John Deere 9320t 18 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1806: John Deere 9520t 18 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1811: John Deere 9220 18 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1810: John Deere 9120 18 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1802: John Deere 8520t 16 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Nebraska Summary 384: John Deere 6120 Syncroplus 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 …

Tests 2009 & 2010: Case Ih Jx 55 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1801: John Deere 8520 16 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.