Science and Mathematics Education Commons^™

Test 1980: Kubota M135x, 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 1977: Massey Ferguson 2670hd, 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 1971: John Deere 8320rt, 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 1970: John Deere 8295rt, 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 …

Class Notes For Math 953: Algebraic Geometry, Instructor Roger Wiegand, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Affine schemes and sheaves, morphisms, dimension theory, projective varieties, graded rings, Artin rings

Class Notes For Math 918: Cohen Macaulay Modules, Instructor Roger Wiegand, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics covered are: Cohen Macaulay modules, zero-dimensional rings, one-dimensional rings, hypersurfaces of finite Cohen-Macaulay type, complete and henselian rings, Krull-Remak-Schmidt, Canonical modules and duality, AR sequences and quivers, two-dimensional rings, ascent and descent of finite Cohen Macaulay type, bounded Cohen Macaulay type.

Class Notes For Math 921/922: Real Analysis, Instructor Mikil Foss, Laura Lynch

Department of Mathematics: Class Notes and Learning Materials

Topics include: Semicontinuity, equicontinuity, absolute continuity, metric spaces, compact spaces, Ascoli’s theorem, Stone Weierstrass theorem, Borel and Lebesque measures, measurable functions, Lebesque integration, convergence theorems, L^p spaces, general measure and integration theory, Radon-Nikodyn theorem, Fubini theorem, Lebesque-Stieltjes integration, Semicontinuity, equicontinuity, absolute continuity, metric spaces, compact spaces, Ascoli’s theorem, Stone Weierstrass theorem, Borel and Lebesque measures, measurable functions, Lebesque integration, convergence theorems, L^p spaces, general measure and integration theory, Radon-Nikodyn theorem, Fubini theorem, Lebesque-Stieltjes integration.

Math In The Middle Report To Nebraska December 2009

Math in the Middle Program Materials

Table of Contents:

An overview of Math in the Middle

Gordon-Rushville reaps benefits of Math in the Middle

Nebraska Math & Science Summer Institutes: Courses enhance teaching abilities

Math in the Middle graduates excel as teacher leaders

Math in the Middle graduate achievements: Exemplary leaders in math education

Dan Schaben, former NATM president, reflects on Math in the Middle

Math Teachers’ Circle: The drive to learn continues

Action Research Papers

Math Expository Papers

Doctoral Students and Math in the Middle

Selected Publications

Contributors: Jim Lewis, Ruth Heaton, Michelle Homp, Wendy Smith, Shannon Parry and Lindsay Augustyn

Design/Layout: Lindsay Augustyn

Nebraskamath December 2009 Newsletter

NebraskaMATH Materials

NebraskaMATH December 2009 Newsletter

Table of Contents:

Nebraska Summit on Mathematics Education speakers inspire audience

Nebraskamath November 2009 Newsletter

NebraskaMATH Materials

NebraskaMATH November 2009 Newsletter

Table of Contents:

Common Core State Standards

NE Summit on Mathematics Education

NE Algebra accepts applications

NCTM seeks articles from teachers

New Central NE Math Teachers’ Circle

Highlight on Action Research

Resource: Teaching Teachers Mathematics

UNL Math Day on Nov. 12

Nebraskamath October 2009 Newsletter

NebraskaMATH Materials

NebraskaMATH October 2009 Newsletter

Table of Contents

Progress Report on the Revised Nebraska Mathematics Standards

Joint Meeting of Nebraska’s Ed Leaders

NE Summit on Mathematics Education

Math Challenge Corner

Resources

Common Core Standards

Encomium: Rolliin Harold Baker: 1916-2007, Carleton J. Phillips, Robert J. Baker, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Rollin H. Baker passed away on November 12, 2007, one day after reaching his 91st birthday. Rollin was a living legend, famous for his pioneering research on biogeography and natural history of Mexican mammals, especially rodents, for his contributions to the understanding of Michigan mammals, and for being a mentor and friend to all young, aspiring mammalogists. Rollin Baker’s career lasted way beyond his traditional retirement, and in his final months he was still active in the Texas Society of Mammalogists and in conservation issues in Texas. Indeed, when he was 89 years old he presented a guest lecture in …

Nebraskamath September 2009 Newsletter

NebraskaMATH Materials

NebraskaMATH September 2009 Newsletter

Table of Contents:

Fast Moving Educational Initiatives

NebraskaMATH Summer Activities

Book Review

Math Quote

Highlight on Action Research

Math in the Middle Cohort 4 Graduation

A Computational Study Of The Effects Of Temperature Variation On Turtle Egg Development, Sex Determination, And Population Dynamics, Amy L. Parrott

Department of Mathematics: Dissertations, Theses, and Student Research

Climate change and its effects on ecosystems is a major concern. For certain animal species, especially those that exhibit what is known as temperature-dependent sex determination (TSD), temperature variations pose a possibly serious threat (Valenzuela and Lance, 2004). In these species, temperature, and not chromosomes, determines the sex of the animal (Valenzuela and Lance, 2004). It is conceivable therefore, that if the temperature changes to favor only one sex, then dire consequences for their populations could occur. In this dissertation, we examine possible effects that climate change may have upon Painted Turtles (Chrysemys picta), a species with TSD. We investigate …

Fan Cohomology And Equivariant Chow Rings Of Toric Varieties, Mu-Wan Huang

Department of Mathematics: Dissertations, Theses, and Student Research

Toric varieties are varieties equipped with a torus action and constructed from cones and fans. In the joint work with Suanne Au and Mark E. Walker, we prove that the equivariant K-theory of an affine toric variety constructed from a cone can be identified with a group ring determined by the cone. When a toric variety X(Δ) is smooth, we interpret equivariant K-groups as presheaves on the associated fan space Δ. Relating the sheaf cohomology groups to equivariant K-groups via a spectral sequence, we provide another proof of a theorem of Vezzosi and Vistoli: equivariant K …

Sicherman Dice, Scott Johnsen

Department of Mathematics: Master of Arts in Teaching, Exam Expository Papers

Many different types of games involve the use of numbered dice. The most common type of die used is the standard six-sided die with the numbers one through six used on its six sides. What if there was another way of numbering a set of dice (using only positive integers) that would create the same probability outcomes as those of a standard set of dice? The February 1978 issue of Scientific American reports that George Sicherman discovered such a numbering (Broline, 1979). Sicherman discovered that two cubic die numbered 1-2-2-3-3-4 and 1-3-4-5-6-8 have the same sum probabilities as do the …

Reviewing, Rethinking And Revising Homework Expectations In A Seventh Grade Math Class, Marilyn Hein

Department of Teaching, Learning, and Teacher Education: Master of Arts in Teaching, Summative Projects

In this action research study of my seventh grade mathematics class, I investigated whether de-emphasizing homework assignments as daily grades while stressing them as daily practice encouraged students to focus more on the learning rather than the daily grade. As part of this study, I also looked at how this change in homework expectations affected my daily teaching. I discovered that having students keep notes, examples, practice problems and homework assignments in a notebook helped them concentrate more on the process of getting answers and why they may of had an incorrect answer. Students were more likely to discuss with …

Oral Presentations: Exploring Presentations Of Homework Problems As An Alternative Assessment Tool, Michael Ford

Department of Teaching, Learning, and Teacher Education: Master of Arts in Teaching, Summative Projects

In this study of my fifth grade mathematics class, I investigated a method of assessing homework presentations as an alternative means of assessment from the more traditional approach of paper and pencil testing. By changing the number of daily problems assigned in my classroom to include shorter assignments and implementing longer, more difficult story problems, I found that students enjoyed mathematics more and had a deeper understanding of the concepts. Increased retention of material, enhanced abilities to communicate problem solving methods, and improved attitudes were all positive side-effects of this project. As a result of my study, I have changed …

Mathematical Communication And Achievement Through Journal Writing, Cathy Schultz

Department of Teaching, Learning, and Teacher Education: Master of Arts in Teaching, Summative Projects

In this study, I investigated my classroom of sixth grade mathematic students on how journal writing influences students’ writing and learning and how journal writing influences my mathematics teaching. I discovered that students enjoyed writing in their journals and reading my responses. Students could openly communicate their questions, thoughts, and opinions. They shared with me what it was like for a sixth grade math student. They also pointed out the concepts they understood or the ones that challenged them. Some students stated that the journal writing helped them think harder. As a teacher, reading and responding to their journal writing …

Real Life Problem Solving In Eighth Grade Mathematics, Michael Bomar

Action Research Projects

In this action research study of my classroom of eighth grade Pre-Algebra, I investigated how student understanding and achievement were affected when the lessons were centered around real-life problem solving when the students had input on the problems used through the use of mathematical journals. I discovered that there was an increase in achievement and understanding when the lessons were centered on real-life problem solving and that the interest level of the students increased through offering their suggestions of applications to real life. As a result of this research, I plan to implement the usage of real-life problems into my …

Mathematical Communication Through Written And Oral Expression, Brandee Wilson

Action Research Projects

In this action research study of my classroom of sixth grade mathematics, I investigated the use of communication of mathematics through both written and oral expression. Giving my students the opportunity to communicate mathematics both in writing and orally helped to deepen the students’ understanding of mathematics. The students’ levels of comprehension were increased when they were presented with a variety of instructional methods. Through discussion and reflection the students were able to find methods that worked best for them and their learning ability. Students’ understanding increased from probing questions that made the students reflect and re-evaluate their solutions. This …

The Use Of Vocabulary In An Eighth Grade Mathematics Classroom: Improving Usage Of Mathematics Vocabulary In Oral And Written Communication, Amy Solomon

Action Research Projects

In this action research study of my mathematics classroom of eighth grade students, I investigated the use of mathematics vocabulary by focusing on improving the usage of this vocabulary in both oral and written communication. I discovered oral communication tended to show more improvements compared to written communication done by the same group of students. As a result of this research, I plan to continue to focus my teaching on the use of mathematics vocabulary in an effort to help my students gain a greater understanding of the daily use of that vocabulary.

Oral And Written Communication In Classroom Mathematics, Lindsey Sample

Action Research Projects

In this action research study of my classroom of sixth grade mathematics, I investigated the impact of an increase in student oral and written communication on student level of understanding and student self-confidence. I also investigated the changes in my teaching as I increased opportunities for student oral and written communication of mathematics. While I discovered that student level of understanding was not necessarily increased if written communications were increased, I did find that there seemed to be a rise in student level of self-confidence and understanding throughout the course of the research project due to an increase in oral …

Cooperative Grouping Working On Mathematics Homework, Maggie Pickering

Action Research Projects

In this action research study of my classroom of sixth grade mathematics, I investigated the impact of cooperative grouping on mathematics homework completion, achievement, and attitude toward mathematics. I discovered that many students do benefit from cooperative grouping in the mathematics classroom; however, low-ability students tended not to benefit as much as other students. Also, homework completion and student attitude toward mathematics did not change with cooperative grouping. As a result of this research, I plan to continue to use cooperative groupings but will change the way cooperative learning is used in my mathematics classroom to see if there is …

Students Writing Original Word Problems, Marcia Ostmeyer

Action Research Projects

In this action research study of my eighth grade mathematics classroom, I investigated what would happen when I shifted part of my instruction to focus on students writing original word problems. I also investigated whether students could show measureable growth in the quality of word problems they wrote throughout the research project. Additionally, I explored whether my students would develop a more positive attitude toward word problems as a result of writing their own word problems. Through surveys and journal responses, I discovered that the focus of my teaching shifted to a role as a facilitator for my students’ writings …

Student Understanding And Achievement When Focusing On Peer-Led Reviews, Ryon Nilson

Action Research Projects

Math in the Middle Institute Partnership, Action Research Project Report, In partial fulfillment of the MAT Degree. Department of Mathematics. University of Nebraska-Lincoln. July 2009.

Making Better Problem Solvers Through Oral And Written Communication, Sheila Mccartney

Action Research Projects

In this action research study of my classroom of eighth grade mathematics, I investigated the impact of oral and written communication on students’ problem-solving skills. I collected data to see how emphasizing oral and written communication affected small-group work, usage of precise mathematical vocabulary, and student attitudes toward mathematics. Oral and written communication allowed students to periodically evaluate their own learning and their involvement in math class. I discovered that the vast majority of students enjoyed working in small groups, and when they got to work in small groups, they felt more confident in their solutions to problems. Data on …

Algebra In The Fifth Grade Mathematics Program, Kathy Bohac

Action Research Projects

In this action research study of my classroom of fifth grade students, I investigated the incorporation of more algebraic concepts in their mathematics curriculum. Due to the restructuring of mathematics courses at the secondary level, my district has suggested that more algebraic concepts be included in the intermediate elementary mathematics curriculum. I discovered that the fifth grade students were not only capable of, but also enjoyed solving algebra equations. As a result of this research, I plan to continue to use the Hands On Equations program each year to enhance the current mathematics curriculum and to improve the fifth graders‟ …

Using Cooperative Learning In A Sixth Grade Math Classroom, Teena Andersen

Action Research Projects

In this action research study of my classroom of sixth grade mathematics, I investigated the impact of cooperative learning on the engagement, participation, and attitudes of my students. I also investigated the impact of cooperative learning upon my own teaching. I discovered that my students not only preferred to learn in cooperative groups, but that their levels of engagement and participation, their attitudes toward math, and their quality of work all improved greatly. My teaching also changed, and I found that I began to enjoy teaching more. As a result of this research, I plan to continue and expand the …

Communication: A Vital Skill Of Mathematics, Lexi Wichelt

Action Research Projects

In this action research study of my classroom of seventh grade mathematics, I investigated the impact of communication in the classroom. I focused on asking more open-ended questions in the hopes that students would engage in mathematical discourse with a focus on correctly using mathematical vocabulary. I also looked at the level of students’ understanding and achievement in mathematics class and the accuracy of students’ assessments of their own understanding when there is a focus on asking and answering open-ended questions. I discovered that students had a better understanding of vocabulary when they were asked more open-ended questions. I also …