Life Sciences Commons^™

How To Spark Bio Curiosity: An Innovative High School Biology Curriculum, Audrie Charles

Graduate Research Showcase

This project is a researched creative endeavor focused around the creation of an exemplary high school biology course. This presentation will showcase an original high school biology curriculum designed to ignite students’ innate curiosity and empower meaningful learning of core concepts like cell structure, genetics, evolution and ecology. Students revisit key ideas through a spiral curriculum that builds complexity, tackling open-ended problems and collaborating on hands-on inquiries like formulating hypotheses, designing experiments, collecting data and drawing evidence-based conclusions. Tangible projects allow students to demonstrate content knowledge in addition to critical thinking abilities like synthesizing concepts, evaluating claims and applying learning …

Lesson Plans In Astronomy, Ecology And Biology, Admin Stem For Success

STEM for Success Showcase

This document contains various lesson plan ideas for concepts within the fields of biology, ecology, astronomy, and geology.

Plant Maze, Admin Stem For Success

STEM for Success Showcase

Students plant bean sprouts to observe their growth.

The Science Of Baking Bread, Admin Stem For Success

STEM for Success Showcase

Activity plan to teach biology and chemistry using a lesson on the baking of bread.

Students Interest And Thoughts On Stem, Chrisitine Girtain

STEM Month

I am Juan Sebastian Bohorquez Mora, I am a sophomore student at Toms River High School North. I am interested in biofuels because I believe they are a good option to replace fossil fuels. I am also interested in duckweed because biofuels are made out of crops, and people need to eat those crops. That’s when duckweed comes in and it can be used as a feedstock for ethanol production which is a biofuel. Bioethanol is a type of biofuel and it is derived from the corn’s starch. Instead of making ethanol from the corn’s starch, we can use duckweed …

Student Success Of Online Vs. In-Person Biology Courses At Virginia Community Colleges, Jennifer Claire Scott

Doctoral Dissertations and Projects

Community colleges have a significant role in preparing students for STEM-related careers through certificates, degrees, and transfers to four-year institutions. In addition, online education is a growing mode of higher education, particularly for community college students. However, community college and online students are both at a high risk of attrition and show a lower success rate for degree completion. The purpose of this study was to identify differences in attrition and success between students in online and in-person biology courses at Virginia community colleges. Also, this study addressed downstream effects of online education by examining course completion of second-semester biology …

An Investigation Of The Impacts Of Traditional, Virtual, And Hybrid Biological Laboratories On College Students’ Achievement And Motivation To Learn Biology, Shavonda Jackson

Dissertations

Virtual courses function in a different manner than traditional courses, therefore they require teaching methods and assessment techniques geared specifically to maximize this learning experience. Internet-based learning and distance-education are no longer new concepts in the science field. Because of this, many collegiate biology programs have created courses that can be taken virtual or hybrid. A number of experimental studies have had great influence in terms of the effects and impacts of educational technology in relation to virtual laboratories.

However, not many studies emphasize the impact of hybrid laboratories on student achievement or assess students’ motivation to learn in a …

A Mixed-Methods Study Of Entomology Incorporation In U.S. Secondary Science Instruction, Erin M. Ingram

Department of Entomology: Dissertations, Theses, and Student Research

To encourage understanding and appreciation of insects, entomology education advocates have supported and encouraged K-12 teachers to integrate insects and insect-related content into formal science instruction. However, research examining how and why science teachers incorporate entomology into secondary science courses is limited.

A sequential explanatory mixed-methods research study was conducted to address this gap. The study was conducted in two phases. During the first phase, quantitative survey research was conducted with a representative sample of 254 U.S. secondary life science teachers. During the subsequent qualitative phase, follow-up interviews were conducted with a purposeful sample of 18 survey participants and an …

Traffic Noise And Sexual Selection: Studies Of Anthropogenic Impact On Bird Songs And Undergraduate Student Reasoning Of Evolutionary Mechanisms, Sarah Spier

School of Natural Resources: Dissertations, Theses, and Student Research

Humans have transformed much of the natural landscape and are continuing to do so at an accelerated rate, compromising natural areas that serve as important habitat for many species. Roads impact much of the environment as they fragment habitat and introduce traffic noise into the acoustic environment, deferentially affecting wildlife in roadside habitat. I explored how traffic noise affects the detection of birds based on whether their vocalizations were masked by traffic noise. Masked species detection was not affected by an increase in traffic noise amplitude, while there was a negative effect of traffic noise amplitude on unmasked species detection, …

Open Textbook Project [Poster], Sue Ann Gardner

University of Nebraska-Lincoln Libraries: Conference Presentations and Speeches

Details of a porject undertaken to collaboratively write and produce an open access parasitology textbook for undergraduate and graduate students. The book will be published by Zea Books at the University of Nebraska-Lincoln in 2020 and be available in English and Spanish both online and print-on-demand through lulu.com.

Co-Executive Editors: Sue Ann Gardner and Scott L. Gardner, University of nebraska-Lincoln. Copyeditor: Linnea Fredrickson, University of Nebraska-Lincoln. Spanish Translator: Yoanna Esquivel Greenwood, University of Nebraska-Lincoln. Project Coordinator: Sue Ann Gardner.

Project website: https://digitalcommons.unl.edu/parasittext/.

Student Perceptions Of Reasons For Lecture And Active Learning, Calan Koch

Honors Theses

With perceived student resistance to active learning in the classroom, instructors are hesitant to implement such methods into their classroom structure despite how effective they may be. This research seeks to understand student perceptions related to the transition to higher prevalence of active learning techniques. We aimed to find answers to how students perceive the ideal classroom to be structured, what reasons they perceive for lecture and active learning components, and possible explanations to concerns of groupwork during class time. We analyzed 64 interviews with undergraduate biology students at the University of Nebraska- Lincoln, developed coding rubrics from commonly found …

The Social Construction Of Life: Critical Thinking About Biology In Society, Peter J. Taylor

Working Papers on Science in a Changing World

This book aims to expand the boundaries of the influences that readers consider when interpreting the practices and products of the life sciences ("biology") and their impact on society. The chapter topics include: Interpreting Ideas of Nature; The structure of origin stories; Multiple layers in influencing an audience: The case of Darwin's On the Origin of Species; Metaphors of coordination and development; What causes a disease?—the consequences of hereditarianism in the case of pellagra; How changeable are IQ test scores?; Social negotiations around genetic screening; Intersecting processes involving genes and environment.

Each chapter consists of 5 parts:

1. Introduce simple …

The Effect Of An Historical Geology Course On Students’ Attitudes Towards Science And Their Knowledge Of Deep Time As A Threshold To Their Knowledge Of Evolution, Allan Nolan

Dissertations

In America there exists a conflict between a small group of its citizens and the concept of evolution. Researchers have studied this conflict and the ways in which teachers might approach educational methodologies that not only address evolution in a sensitive manner, but also remain legally acceptable.

This research was designed to address teaching evolution in the context of deep time – the concept that time is vast and that geology and biology operate in a timescale of hundreds of millions to billions of years. In previous peer-reviewed works, it has been stated that deep time acts as a threshold …

A Teachable Unit On Soft Corals With Instructional Method Variances, Emily Breech

Honors Projects

The soft coral Sinularia flexibilis contains an aqueous alcohol extract that has shown antineoplastic activity against lymphocytic leukemia (Weinheimer and Matson, 1977). It also has other biological properties that work as antimicrobials, anti-inflammatory agents, and cytotoxicity activities (Kamel and Slattery, 2005). There is much research on the effects of flow rate on growth and morphology (Khalesi, Beeftink, & Wijffels, 2007) and the effects of light-dependency on growth rate (Khalesi, Beeftink, & Wijffels, 2009). The purpose of this student project was to further research on S. flexibilis, as well as incorporate that research into evaluating the effects of lecture-based teaching …

A Model Of The Use Of Evolutionary Trees (Muet) To Inform K-14 Biology Education, Yi Kong, Ankita Thawani, Trevor R. Anderson, Nancy Pelaez

PIBERG Publications

Evolutionary trees are powerful tools used in modern biological research, and also commonly used in textbooks and classroom instruction. Studies have shown that K-14 students have difficulties interpreting evolutionary trees. To improve student learning about this topic, it is essential to teach them how to understand and use trees like professional biologists. Unfortunately, few currently used teaching frameworks for evolution instruction are designed for this purpose. In this study we developed the Model of the Use of Evolutionary Trees (MUET), a conceptual model that characterizes how evolutionary trees were used by professional biologists as represented in their research publications. The …

1. Types Of Alignment: Presentations & Demos Assignment, Sarah O'Leary-Driscoll

Sequence Alignments

Pairwise Alignment: DNA

Pairwise Alignment: Protein

Multiple Sequence Alignment: DNA

Multiple Sequence Alignment: Protein

Effects Of Soil Erosion Barriers On Percent Cover And Sediment Size, Michael Perez

STAR Program Research Presentations

Ranching began on Santa Rosa Island in the 1840’s, introducing nonnative megafauna that put selective grazing pressures on endemic species. Dense groves of island oak (Q. tomentella) are aid in sediment deposition and retention. A current restoration effort, involved installing soil erosion barriers, known as wattles, to prevent sediment from being lost upslope and recruit plant growth whose root systems could further stabilize the slope. This experiment was designed to compare percent cover of vegetation growth in areas with and without soil erosion barriers. This was done using the line intercept method (n=42) on three meter transects, measuring …

Evaluating College Biology Laboratory Accommodations For Students With Blindness And Visual Impairments, Barbara Rae Heard

All Theses And Dissertations

Studies show that active participation in science laboratory activities promotes student learning. However, students with blindness and visual impairments (BVI) often confront obstacles to active participation in the required activities of the college biology laboratory. Legislation requires institutions of higher education to provide accommodations for students with disabilities, yet the institutions must also maintain the academic integrity of their courses and programs. While college biology instructors provide specific accommodations, such as tactile models and audible devices, to enable active participation by students with BVI, they do so without research-supported guidelines for best practices. This mixed methods study sought to evaluate …

Assessing Student Comprehension In Introductory Biology: A Comparison Of Free-Response And Multiple-True/False Exam Formats, Macy A. Potts, Brian Couch, Joanna K. Hubbard

UCARE Research Products

Question format is an important consideration when designing instruments to gauge student comprehension. In many lecture-style courses, instructors must decide how to effectively test a large group of students. Two common types of question formats used for introductory biology exams are free-response (FR) and multiple-true/false (MTF). FR questions include a question prompt which students respond to with essay-style answers. Conversely, MTF questions include an opening question stem with accompanying statements to be marked as either true or false. The goal of this study was to determine the advantages and disadvantages of FR and MTF question formats for assessing student comprehension …

1. "Investigating The Impact Of Changes In Carbon Dioxide Concentration On Ecosystems", Sarah O'Leary-Driscoll, Crystal Randall

Ecosystem Disruption & Climate Change

Question: Does the concentration of carbon dioxide affect air temperature in a closed environment?

2a: "Illinois Carbon Dioxide Emissions Activity", Sarah O'Leary-Driscoll, Crystal Randall

Ecosystem Disruption & Climate Change

Your goal for this activity is to compare the different sources of carbon dioxide emissions, stemming from the consumption of fossil fuels, in Illinois. To do this you will be working with data spanning from 1980 to 2012.

3: "The Current Extinction: Defaunation & Ecosystem Disruption", Sarah O'Leary-Driscoll, Crystal Randall

Ecosystem Disruption & Climate Change

Information taken from: Dirzo, R. et al (2014). Defaunation in the Anthropocene. Science, 345(401).

Scientists estimate, conservatively, that there are 5 to 9 million different animal species on the planet. But that number is continually changing, and unfortunately, dropping, as we are likely losing 11,000- 58,000 species annually, and evidence suggests that on average, there has been a decline of about 28% in terms of numbers of individuals within a species over the last four decades. Both of these statistics are vitally important. The critical nature of the first is perhaps more obvious, as total loss of a species is …

The Greenhouse Effect: Does The Concentration Of Carbon Dioxide Affect The Air Temperature In A Closed Environment?, Climate Science Investigations - Nasa

Ecosystem Disruption & Climate Change

The purpose of this lesson is to investigate the effect of carbon dioxide (CO2) concentration on air temperature in a closed environment.

Thinking Beyond The Fried Egg Model: How Accurately Do Students Perceive Cells In A Living Context?, Milissa Knox

Electronic Theses and Dissertations

This exploratory study investigated three aspects of introductory undergraduate biology students’ understanding about cells. The study, which took place at the University of Maine with voluntary students in Basic Biology (“BIO100”) in the summer and fall of 2009, examined (1) students’ pre-course perceptions of cells as they exist in a living context and (2) gains in students’ perception and knowledge about cells after completing the one-semester course (BIO100). Results are based on lecture exam scores, pre-post surveys developed as a part of this thesis, and interviews with two groups of biology students. A total of 498 students participated in the …

Evolution Practice 2, Imsa Biology Team

Evolution

Evolution Problems

Genetic Drift Simulation, Imsa Biology Team

Evolution

Genetic drift can be defined as a random fluctuation in gene frequency. More specifically, it tells us that different alleles may increase or decrease in a population in proportion to one another over time, just by chance, rather than due to any fitness advantage.

Mechanisms And Speciation 2: Evolution On The Web Questions, Imsa Biology Team

Evolution

The website below, sponsored by UC Berkeley, is a reliable source for information about evolution. This will give you the introductory information about the mechanisms of Evolution.

Mechanisms And Speciation 1: The Modern Synthesis, Imsa Biology Team

Evolution

The Modern Synthesis or Synthetic Theory of Evolution is an explanation of evolution that is based on modern genetic principles. According to the Modern Synthesis (a.k.a. Neo-Darwinism):

Evidence Of Evolution 2: Definitions For Evolutionary Evidence Lab, Imsa Biology Team

Evolution

This lab activity was designed to provide you with opportunities to make inferences and draw conclusions about evolution and the common ancestry of various animals based on their anatomical characteristics and comparative anatomy. You will be given tasks to accomplish or questions to answer at each of 11 stations. In order to do this successfully, you must make careful observations of the specimens on display. You must also know the following definitions before beginning this activity:

Evolution Practice 1, Imsa Biology Team

Evolution

Answer the following questions using information from the handouts, and examples from the LAB