Science and Mathematics Education Commons^™

Associations Between Input And Outcome Variables In An Online High School Bioinformatics Instructional Program, Douglas S. Lownsbery

Dissertations and Theses

Quantitative data from a completed year of an innovative online high school bioinformatics instructional program were analyzed as part of a descriptive research study. The online instructional program provided the opportunity for high school students to develop content understandings of molecular genetics and to use sophisticated bioinformatics tools and methodologies to conduct authentic research. Quantitative data were analyzed to identify potential associations between independent program variables including implementation setting, gender, and student educational backgrounds and dependent variables indicating success in the program including completion rates for analyzing DNA clones and performance gains from pre-to-post assessments of bioinformatics knowledge. Study results …

Project Nano: Will Allowing High School Students To Use Research Grade Scanning Electron Microscopes Increase Their Interest In Science?, Leslie Teneyck Smith

Dissertations and Theses

In this study, one AP Biology curriculum unit and one general Biology curriculum unit that included tabletop Scanning Electron Microscope (SEM) technology provided by Project NANO, a grant-funded, collaborative initiative designed to integrate cutting-edge nanotechnology into high school classrooms were implemented at a public high school in rural Oregon. Nine students participated in the AP unit and 52 students participated in the general Biology unit. Each student completed an opinion-based pre and post survey to determine if using the SEM as a part of the curriculum unit had an impact on his or her interest in science or in nanoscience. …

Effects Of Ethnicity And Gender On Sixth-Grade Students' Environmental Knowledge And Attitudes After Participation In A Year-Long Environmental Education Program, Rachel Stagner

Dissertations and Theses

The goal of environmental education (EE) has always been to increase knowledge about the environment and to foster positive environmental attitudes. Increasingly, as the call for integrating EE programs into mainstream science curriculum intensifies, it is important to continue to evaluate the effectiveness of these programs not only through measures of change in knowledge and attitudes, but through the additional criteria of meeting the needs of different gender and ethnic groups.

The purpose of this research was to identify whether a watershed education program was meeting the needs of diverse learners within the context of a year-long, integrated, sixth-grade science …

An Investigation Into Instructional Support For Data Analysis In High School Science Inquiry, Anika Rae Baker-Lawrence

Dissertations and Theses

The implementation of scientific inquiry in the high school classroom has proven to be not only relevant and exploratory, but challenging and engaging as well. This style of curriculum design has been recognized as a primary means of achieving the goals and objectives set by the National Resource Council (NRC, 1996). While much research has shown that science inquiry helps students to gain understanding of content knowledge, little research has been conducted to assess gains in higher order thinking skills, specifically those related to data analysis (Anderson, 2002; Germann and Aram, 1996; Hofstein, Navon, Kipnis, and Mamlok-Naaman, 2005; Miner, Levy, …

Increasing Evidence Based Reasoning In An 8th Grade Classroom Through Explicit Instruction, Erol Chandler

Dissertations and Theses

This study investigates the effectiveness of an instructional strategy that uses students' prior understanding of informal evidence based reasoning (EBR) to build an understanding of scientific EBR. A pre and post instructional strategy survey revealed that students' understanding of EBR increased over the length of the study. Data collected from pre and post instructional discussions also showed increases in the amount of EBR students used.

Thinking Aloud In The Science Classroom: Can A Literacy Strategy Increase Student Learning In Science?, Lindsey Joan Mockel

Dissertations and Theses

This research study investigated the effect of using the think aloud protocol while reading informational text on students' ability to learn from text in a secondary science classroom. The participants in this study were high school students (n=47) in three classes of a mixed-grade Integrated Biology, Chemistry, and Physics course. The study tracked student achievement during a four-week curriculum unit on the theory of evolution and evidence for biological evolution. All students received instruction on using the think aloud protocol, and all students practiced the think aloud protocol when reading short articles related to scientific evidence for evolution. The researcher …

Lighting The Fire: How Peer-Mentoring Helps Adult Learners Increase Their Interest In Stem Careers: A Case Study At The Community College Level, Patricia Marie Deturk

Dissertations and Theses

In the U.S., about 7,000 high school students drop out each school day, representing a loss of talent and ability. Concurrently, there are a decreasing number of enrolled students taking science-related courses at the high school and college levels. Adults, who return to obtain their General Educational Development (GED) certification, are an untapped resource that could be steered toward STEM (Science, Technology, Engineering and Mathematics) careers. In this case study, 15 GED students were shown a STEM video, and then peer mentored by 8 CLA (Clinical Laboratory Assistant) students, in a student-centered laboratory experience. Individual interviews of the GED students …

Impact Of Teacher Feedback On The Development Of State Issued Scoring Guides For Science Inquiry And Engineering Design Performance Assessments, Timothy Paul Fiser

Dissertations and Theses

In 2010, Oregon Department of Education (ODE) developed a set of rubrics designed to score a state required performance assessment targeting Science Inquiry (SI) and Engineering Design (ED) skills. During the development of the rubrics, ODE invited six panels of teachers to provide feedback on an early draft of the rubrics. This case study analyzed the teachers' feedback and the revisions of the rubrics to identify the types of feedback teachers offered and how ODE used that feedback to develop the rubrics. The results showed the teachers' feedback focused on defining the skills students were asked to demonstrate and distinguishing …

An Investigation Into Teacher Support Of Science Explanation In High School Science Inquiry Units, Rebecca Sue Hoffenberg

Dissertations and Theses

The Framework for K-12 Science Education, the foundation for the Next Generation Science Standards, identifies scientific explanation as one of the eight practices "essential for learning science." In order to design professional development to help teachers implement these new standards, we need to assess students' current skill level in explanation construction, characterize current teacher practice surrounding it, and identify best practices for supporting students in explanation construction. This multiple-case study investigated teacher practice in eight high school science inquiry units in the Portland metro area and the scientific explanations the students produced in their work samples.

Teacher Instructional Portfolios (TIPs) …

Deoxyribonucleic Acid And Other Words Students Avoid Speaking Aloud: Evaluating The Role Of Pronunciation On Participation In Secondary School Science Classroom Conversations, Stacie Elizabeth Beck

Dissertations and Theses

Student's verbal participation in science classrooms is an essential element in building the skills necessary for proficiency in scientific literacy and discourse. The myriad of new, multisyllabic vocabulary terms introduced in one year of secondary school biology instruction can overwhelm students and further impede the self-efficacy needed for concise constructions of scientific explanations and arguments. Factors inhibiting students' inclination to answer questions, share ideas and respond to peers in biology classrooms include confidence and self-perceived competence in appropriately speaking the language of science. Providing students with explicit, engaging instruction in methods to develop vocabulary for use in expressing conclusions is …

Why Ask Why: An Exploration Of The Role Of Proof In The Mathematics Classroom, Joanna Rachel Bartlo

Dissertations and Theses

Although proof has long been viewed as a cornerstone of mathematical activity, incorporating the mathematical practice of proving into classrooms is not a simple matter. In this dissertation I aim to advance research on proof by addressing this issue. In particular, I explore the role proof might play in promoting the learning of mathematics in the classroom. I do this in a series of three articles (organized as three chapters), which are preceded by an introductory chapter. The introductory chapter situates the remaining chapters in the context of mathematics education research. In the second chapter I explore what the literature …

Patterns In Nature Forming Patterns In Minds : An Evaluation Of An Introductory Physics Unit, Christopher Ryan Sheaffer

Dissertations and Theses

Educators are increasingly focused on the process over the content. In science especially, teachers want students to understand the nature of science and investigation. The emergence of scientific inquiry and engineering design teaching methods have led to the development of new teaching and evaluation methods that concentrate on steps in a process rather than facts in a topic. Research supports the notion that an explicit focus on the scientific process can lead to student science knowledge gains. In response to new research and standards many teachers have been developing teaching methods that seem to work well in their classrooms, but …

Sustainability Education As A Framework For Enhancing Environmental Stewardship In Young Leaders: An Intervention At Tryon Creek Nature Day Camp, Andrea Nicole Lawrence

Dissertations and Theses

UNESCO established Sustainability Education as a top priority when it declared 2005 - 2014 to be the global decade for sustainability. Sustainability education can be implemented in outdoor programs such as nature summer camps in order to build environmental stewardship and ecological literacy in counselors and campers. This study sought to determine the extent to which an ecology and leadership training given to assistant counselors at Tryon Creek State Natural Area day camp achieved the goals of sustainability education--for the assistant counselors to learn about ecology, develop stewardship attitudes and behaviors toward the environment, and become positive role models for …

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 …

A Numerical Solution For The Ultimate Strength Of Tubular Beam-Columns, Arnold L. Wagner

Dissertations and Theses

To provide a basis for the development of interaction curves for tubular beam-columns of annular cross section, a general purpose beam-column computer program is developed, and used to determine ultimate load capacities. The paper presents the analytical model and the computer method. The analytical results are compared with published test data as well as experimental data obtained as part of this project.

Construction And Implementation Of An Individualized Math Program For Sixth Graders, Lynda Sylvia Hatch

Dissertations and Theses

The sixth grade teachers at Mooberry School in Hillsboro, Oregon were not pleased with the way they were teaching math. The students, grouped by ability, had a poor self-concept about math and felt "locked into" one class.

During the summer of 1973, these teachers considered ways to change their math instruction. Reading was done to determine the most promising practice in math education in the United States. A successful approach to learning appeared to be individualized instruction, as is discussed in this paper. Many different individualized programs were studied, grouped into eleven general categories, and described in detail. The Mooberry …