CourseSource: Resources

Science Behind the Lesson

2003

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294

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The Science Behind Parthenogenesis: Interesting things happen when meiosis goes “wrong”

Parthenogenetic reproduction is a fascinating, complex topic. This article accompanies “Why Meiosis Matters: The case of the fatherless snake.” It summarizes the basic information an introductory biology or genetics instructor...

Courses: Cell Biology Genetics Introductory Biology

meiosismitosissex determinationAsexual reproductionParthenogenesis

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6246

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554

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2

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Meiosis Remodeled: Inclusion of New Parts to Poppit Bead Models Enhances Understanding of Meiosis

A long-standing tradition uses strings of poppit beads of different colors to model meiosis, especially to show how segments of paired homologous chromosomes are recombined. Our use of orthodontic latex bands to model cohesion of sister...

Courses: Cell Biology Genetics Introductory Biology

meiosischiasma formationchromosome recombination

Essay

583

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72

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Teaching about fatherless snakes in a prison classroom

Developing a course for the first time as a graduate student is challenging. When I first taught introductory biology with the Cornell Prison Education Program, I struggled to design and adapt lessons that felt relevant to my students....

Courses: Genetics Introductory Biology

meiosismitosisReproduction

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5648

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1168

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3

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Meiosis: A Play in Three Acts, Starring DNA Sequence

Meiosis is well known for being a sticky topic that appears repeatedly in biology curricula. We observe that a typical undergraduate biology major cannot correctly identify haploid and diploid cells or explain how and why chromosomes pair before...

Courses: Cell Biology Genetics Introductory Biology

recombinationmeiosisDNA sequenceCrossingoverchromosome structureHolliday junctionhomology

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572

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78

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Learning Frameworks Aid Goal-oriented Course Design

As a new instructor it can be hard to know where to begin. Thankfully, CourseSource's learning frameworks (https://www.coursesource.org/courses) shaped my approach to teaching as a first year instructor. The frameworks, which include learning...

Courses: Introductory Biology Professional Development and Career Planning

backward designlearning goalscourse design

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4803

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737

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A simple way for students to visualize cellular respiration: adapting the board game MousetrapTM to model complexity

Lecture-based introductory biology courses are typically content-heavy as instructors strive to provide students with foundational knowledge in a broad range of topics. One topic traditionally covered is cellular respiration, the series of...

Courses: Introductory Biology

ATPGlycolysisCellular RespirationElectron Transport ChainKrebs Cycle

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3469

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722

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Homologous chromosomes? Exploring human sex chromosomes, sex determination and sex reversal using bioinformatics approaches

Constructing a robust understanding of homologous chromosomes, sex chromosomes, and the particulate nature of genes is a notoriously difficult task for undergraduate biology students. In this lesson, students expand their knowledge of human...

Courses: Bioinformatics Genetics Introductory Biology Science Process Skills

bioinformaticsautosomehomologous chromosomeshomologous recombinationsex chromosomesex determinationsex reversal mutations

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1581

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339

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Real World Scenarios in Non-Majors Biology

Students in non-majors’ biology courses may not choose careers that require biology content knowledge; however, all will encounter science in their lives. We redesigned a non-majors introductory biology course to support students in...

Courses: Introductory Biology Science Process Skills

geneticsVaccinesScientific ProcessGMOsviruses

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5285

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693

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Investigating Enzyme Structure and Function Through Model-Building and Peer Teaching in an Introductory Biology Course

A foundational knowledge of the relationship between structure and function is critical to understanding how enzymes work. The seemingly invisible nature of these molecular interactions makes it challenging for undergraduate students to...

Courses: Biochemistry and Molecular Biology Introductory Biology

structure-functionEnzymeallosteric regulationcompetitive inhibitionfeedback inhibitionnoncompetitive inhibitionproductsubstrate

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1900

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442

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Does it pose a threat? Investigating the impact of Bt corn on monarch butterflies

Aspiring scientists know that a hallmark of science is that experiments are repeatable and testable. However, students do not often get opportunities to explore the replicability of science. Using a current “hot topic” of...

Courses: Ecology Ecology Genetics Introductory Biology Science Process Skills

ecologyCommunity EcologyBt cornGenetic modificationMonarch butterflies

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173

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Exploring Biological Variation and the Value of Natural History Collections Using an Online Lesson

First-year science students in large-enrollment lecture courses are rarely given opportunities to contribute to science beyond their classroom as part of their curriculum. Meanwhile, natural history museums are eager to engage students and the...

Courses: Introductory Biology