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    Balancing Chemical Equations Using Matrix Algebra
    This Excel workbook introduces using matrix algebra to balance chemical reactions. The workbook allows the user to set up their own matrices for chemical reactions involving 2-7 elements.
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    Birthday Problem and Class Phenotypic Probabilities
    An Excel workbook exploring two related applications, the Birthday Problem and Class Phenotypic Probabilities. Students enter their own phenotypes into the workbook.
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    3D FractaL-Tree
    3D FractaL-Tree allows scientists to collect data from actual specimens in the field or laboratory, insert these measurements into a spatially explicit L-system package, and then visually compare...

    Keywords: fractalsL-systems

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    EvolSeq
    An Excel worksheet that simulates the molecular evolution of DNA sequences.
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    Luria-Delbruck
    These two workbooks model the evolution of phage resistance in a bacterial population under two alternative hypotheses.
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    Michaelis-Menten Enzyme Kinetics
    In this simulation, equations used in enzyme kinetics (Michaelis-Menten, Eadie-Hofstee, Dixon, and Lineweaver-Burk) are modeled under various conditions.
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    SIR BuildIt
    An introduction to epidemiological models using interactive Excel worksheets
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    ABO Blood Group Frequencies
    An Excel workbook in which students can calculate blood type frequencies through different approaches (Hardy-Weinberg, quadratic formula, and the EM algorithm). The workbook shows the formulas...
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    Digital Intro: Revitalizing the “Introduction to Psychology” course through Project-based Learning
    Welcome to Digital Intro where we are transforming introductory courses into active, project-based experiences. Our projects expose students to a wide range of digital skills as they learn...
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    Cell Cycle and Mitosis
    This module introduces activities that allow students to walk through the cell cycle and mitotic cell division processes. As part of the activities, students learn about and apply knowledge of...
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    3-051-ProjectileMotions-ModelingScenario
    We consider several instances of projectile flight without resistance, one on level ground and one from edge of cliff to determine maximum distance and placement.
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    Leveraging Panel Discussions to Promote Positive Representation, Develop Science Identity, and Shift Stereotypes
    The overrepresentation of cis straight white male scientists in examples used in Biology curriculum makes it difficult for students with other axes of diversity (race/ethnicity, gender, sexuality,...
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    3-052-OptimalProjectileFiring-ModelingScenario
    We offer the opportunity to model a projectile's trajectory in several cases, all without resistance.
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    Exploring Microbial Diversity: An Interactive In-Class Assignment for Biology and Microbiology Courses
    This interactive assignment engages students in a hands-on exploration of microbial diversity and the importance of microbes in ecosystems. Designed for General Biology II and Introduction to...
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    The Great Petunia Carnage of 2017: A Clicker Case Study Using Petunias to Describe the Effect of Genetic Modification on the Biochemistry of Flower Color and Phenotype in Plants
    In this single class period case study, students examine the difference between genotype and phenotype by studying the mechanisms by which commercially available petunias have been bred to have...
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    Learning the Landscape: An Active and Applied Lesson on Landscape Ecology for General Ecology Courses
    Landscape ecology is an important subtopic of ecology. As a field, it is inherently interdisciplinary and provides opportunities to teach not only content, but transferable ecological and...
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    Morphological identification of mosquitoes through microscopic observation
    Scientific research is integrated into various stages of student learning, but hands-on involvement in the research process typically begins at the university level. This module aims to engage high...
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    1-144-HeatCool-ModelingScenario
    We offer an opportunity to build a mathematical model using Newton's Law of Cooling for a closed plastic baggie of liquid inside a liquid container.
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    1-131-CaffeineElimination-ModelingScenario
    We model the concentration of caffeine eliminated from the human body at a rate proportional to the concentration. This is a ``first-order reaction'' in the language of pharmacokinetics -- the...
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    PhyloCards: a fun approach to exploring the local Wissahickon biodiversity, Chestnut Hill, Philadelphia, PA
    PhyloCards are educational trading cards that teach people about biodiversity, conservation, and ecosystem relationships. We used this educational tool to explore the Wissahickon Valley's...
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