BIOLOGY FOR LIFE
  • IB Bio Syllabus
    • Unity and Diversity (A) >
      • A1 molecules >
        • A1.1: Water
        • A1.2: Nucleic Acids
      • A2 Cells >
        • A2.1: Origins of Cells
        • A2.2: Cell Structure
        • A2.3: Viruses
      • A3 Organisms >
        • A3.1: Diversity of Organisms
        • A3.2: Classification and Cladistics
      • A4 Ecosystems >
        • A4.1: Evolution and Speciation
        • A4.2: Conservation of Biodiversity
    • Form and Function (B) >
      • B1 Molecules >
        • B1.1: Carbohydrates and Lipids
        • B1.2: Proteins
      • B2 Cells >
        • B2.1 Membranes and Membrane Transport
        • B2.2 Organelles and Compartmentalization
        • B2.3 Cell Specialization
      • B3 Organisms >
        • B3.1 Gas Exchange
        • B3.2 Transport
        • B3.3 Muscle and Motility
      • B4 Ecosystems >
        • B4.1 Adaptation to Environment
        • B4.2 Ecological Niches
    • Interaction and Interdependence (C) >
      • C1 Molecules >
        • C1.1: Enzymes and Metabolism
        • C1.2: Cell Respiration
        • C1.3: Photosynthesis
      • C2 Cells >
        • C2.1: Chemical Signaling
        • C2.2: Neural Signaling
      • C3 Organisms >
        • C3.1: Integration of Body Systems
        • C3.2: Defense Against Disease
      • C4 Ecosystems >
        • C4.1 Populations and Communities
        • C4.2 Transfers of Energy and Matter
    • Continuity and Change (D) >
      • D1 Molecules >
        • D1.1: DNA Replication
        • D1.2: Protein Synthesis
        • D1.3: Mutation and Gene Editing
      • D2 Cells >
        • D2.1: Cell and Nuclear Division
        • D2.2: Gene Expression
        • D2.3: Water Potential
      • D3 Organisms >
        • D3.1: Reproduction
        • D3.2: Inheritance
        • D3.3: Homeostasis
      • D4 Ecosystems >
        • D4.1: Natural Selection
        • D4.2: Stability and Change
        • D4.3: Climate Change
  • IB Requirements
    • Internal Assessment >
      • Research Design
      • Analysis
      • Conclusion
      • Evaluation
    • External Assessment >
      • Exam Revision
    • Extended Essay
    • Reflective Project
    • Collaborative Sciences Project
    • Learner Profile
  • Skills for Biology
    • Tools >
      • Experimental Techniques >
        • Addressing Safety
        • Measuring Variables >
          • Measurement Uncertainties
          • Observations
          • Biological Drawings
        • Applying Techniques >
          • Microscopy
      • Technology >
        • Tech to Collect Data
        • Tech to Process Data
      • Mathematics >
        • General Math
        • Units and Symbols
        • Processing Uncertainties
        • Graphing >
          • Types of Graphs
          • How to Graph
          • Graph Error Bars
    • Inquiry Processes >
      • Exploring >
        • Research Questions
        • Hypotheses and Predictions
      • Designing >
        • Variables
        • Sampling
      • Control of Variables
      • Collecting Data >
        • Data Tables
      • Processing Data
      • Interpreting Results
      • Concluding
      • Evaluating >
        • Error Analysis
  • Statistics
    • Descriptive Statistics >
      • Skew and the Normal Distribution
      • Outliers
      • Measures of Central Tendancy
      • Measures of Dispersion
      • Correlation Coefficients
      • Coefficient of Determination
    • Inferential Statistics >
      • Standard Error
      • T-Test
      • ANOVA
      • Kruskal-Wallis
      • X2 Test of Independence
      • X2 Goodness of Fit
    • Glossary of Statistic Terms and Equations
  • SHS Course Info
    • Above & Beyond >
      • Biology Club
      • Pumpkin Carving
      • Scavenger Hunt
      • Science News
      • Wood Duck Project (legacy)
      • Invasive Crayfish Project (legacy)
    • Assessment >
      • Class Grading IB Bio I
      • Class Grading IB Bio II
      • Daily Quizzes (legacy)
      • Lab Practicals (legacy)
    • Class Photos
    • Recommendations
  • Contact
    • About >
      • Philosophy
      • Resume
      • Reflection
      • Favorite Quotes
      • AEF Blog
  • Expeditions
    • Bahamas (2009)
    • Trinidad (2010)
    • Trinidad (2011)
    • Ecuador (2012)
    • Trinidad (2013)
    • Peru (2014)
    • Bahamas (2015)
    • Peru (2016)
    • Costa Rica (2017)
    • Costa Rica (2018)
    • Arizona (2022)
    • Florida (2023)
    • Belize (2024)
    • Costa Rica (2025)
  • Summer Ecology Research
  • Teacher Resources

About Ms. von Bargen

PictureMy personalized guanine cap!
I am a veteran IB Biology educator, curriculum designer, and professional development leader dedicated to teaching biology through an interactive, joyous, and collaborative approach. I was born at South Lake Tahoe in California, however I moved around a lot with my mom and dad when I was a kid. We lived in England and Saudi Arabia, as well as multiple places in the United States. When I was in sixth grade my family moved to the Seattle area, where I have been ever since, and where I currently share a home with my wonderful husband and three beloved cats. I still travel quite a bit, and would say that I have an adventurous spirit; a recent big adventure of mine was backpacking the John Muir Trail, trekking 250 miles through the incredible Sierra Nevada.

While in college at the University of Washington, I worked at the local zoo, was a veterinary technician, and participated in multiple field ecology research projects. Upon graduation from college, I was a National Park Service ranger, working at Yosemite National Park in guest interpretive services and wildlife management. I had thought of going to vet school, and was well on my way, before deciding to become a teacher. It was the best decision I have ever made.

My interest in biological field work continued after I became a teacher. In 2004, I won a competitive grant through the National Geographic Society to travel to Brazil with Earthwatch to assist with wildlife conservation research in the Pantanal. While there, I wrote a reflection on teaching that has served as a "touchstone" in my teaching career.  The trip also spurred a deep desire to get students out into the field doing real science.  I have led multiple expeditions where students work alongside wildlife and conservation biologists, actively contributing to authentic field data collection. Together, we have traveled to the Bahamas, Ecuador, Peru, Costa Rica, Trinidad, and Belize. Closer to home, I developed a summer ecology research course to give students these same hands-on, authentic research experiences in Olympic National Park. In recognition of this impactful fieldwork and partnership, I was honored to be named the 2025 Olympic NatureBridge Educator of the Year. 

I am passionate about educational content creation and supporting the global teaching community. I started biologyforlife.com in 2002 and have been building, adapting, and expanding it ever since. I truly love creating and sharing, and it brings me an immense amount of joy knowing that other educators and students benefit from what I share. While I have designed and led teacher professional development workshops across many different facets of education for many years, I expanded this work in 2025 by joining the IB Educator Network to officially lead IB Biology workshops for peers.

I am very proud of my many accomplishments as a teacher. Evaluations and feedback about my teaching from students, parents, colleagues, and school principals all enthusiastically commend my proficiency as an educator. I have earned and maintained National Board Certification through the National Board for Professional Teaching Standards in Adolescent / Young Adult Science Education (emphasis in biology). I have also written and been awarded multiple grants from the Issaquah Schools Foundation for cutting-edge biotechnology and ecology data colletion equipment.

Throughout my career, I have been incredibly privileged to receive several high-level national and regional recognitions for my work in education. In 2010, a wonderful student selected me for recognition in Washington DC as a recipient of the Presidential Scholar Teacher Recognition Award. I was selected as a winner of the Presidential Award for Excellence in Mathematics and Science Teaching, for which I was recognized by President Obama in 2015.  In 2017-2018, I served as an Albert Einstein Distinguished Educator Fellow, spending one year in Washington, DC focusing on federal-level science education programs and policy. Additionally, on three occasions, I have been recognized as the Skyline High School PTSA Teacher of the Year.

For more information, please view my professional resume and my teaching philosophy.

I give many of my IB Biology resources away, for the benefit of students and teachers around the world. 
If you've found the materials helpful, please consider sending a gift from our classroom wish list.


​Did I forget something?  Know of a mistake? Have a suggestion?  Let me know by emailing me here.

Before using any of the files available on this site,
​please familiarize yourself with the 
Creative Commons Attribution License. 
​​​It prohibits the use of any material on this site for commercial  purposes of any kind.  ​
​
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  • IB Bio Syllabus
    • Unity and Diversity (A) >
      • A1 molecules >
        • A1.1: Water
        • A1.2: Nucleic Acids
      • A2 Cells >
        • A2.1: Origins of Cells
        • A2.2: Cell Structure
        • A2.3: Viruses
      • A3 Organisms >
        • A3.1: Diversity of Organisms
        • A3.2: Classification and Cladistics
      • A4 Ecosystems >
        • A4.1: Evolution and Speciation
        • A4.2: Conservation of Biodiversity
    • Form and Function (B) >
      • B1 Molecules >
        • B1.1: Carbohydrates and Lipids
        • B1.2: Proteins
      • B2 Cells >
        • B2.1 Membranes and Membrane Transport
        • B2.2 Organelles and Compartmentalization
        • B2.3 Cell Specialization
      • B3 Organisms >
        • B3.1 Gas Exchange
        • B3.2 Transport
        • B3.3 Muscle and Motility
      • B4 Ecosystems >
        • B4.1 Adaptation to Environment
        • B4.2 Ecological Niches
    • Interaction and Interdependence (C) >
      • C1 Molecules >
        • C1.1: Enzymes and Metabolism
        • C1.2: Cell Respiration
        • C1.3: Photosynthesis
      • C2 Cells >
        • C2.1: Chemical Signaling
        • C2.2: Neural Signaling
      • C3 Organisms >
        • C3.1: Integration of Body Systems
        • C3.2: Defense Against Disease
      • C4 Ecosystems >
        • C4.1 Populations and Communities
        • C4.2 Transfers of Energy and Matter
    • Continuity and Change (D) >
      • D1 Molecules >
        • D1.1: DNA Replication
        • D1.2: Protein Synthesis
        • D1.3: Mutation and Gene Editing
      • D2 Cells >
        • D2.1: Cell and Nuclear Division
        • D2.2: Gene Expression
        • D2.3: Water Potential
      • D3 Organisms >
        • D3.1: Reproduction
        • D3.2: Inheritance
        • D3.3: Homeostasis
      • D4 Ecosystems >
        • D4.1: Natural Selection
        • D4.2: Stability and Change
        • D4.3: Climate Change
  • IB Requirements
    • Internal Assessment >
      • Research Design
      • Analysis
      • Conclusion
      • Evaluation
    • External Assessment >
      • Exam Revision
    • Extended Essay
    • Reflective Project
    • Collaborative Sciences Project
    • Learner Profile
  • Skills for Biology
    • Tools >
      • Experimental Techniques >
        • Addressing Safety
        • Measuring Variables >
          • Measurement Uncertainties
          • Observations
          • Biological Drawings
        • Applying Techniques >
          • Microscopy
      • Technology >
        • Tech to Collect Data
        • Tech to Process Data
      • Mathematics >
        • General Math
        • Units and Symbols
        • Processing Uncertainties
        • Graphing >
          • Types of Graphs
          • How to Graph
          • Graph Error Bars
    • Inquiry Processes >
      • Exploring >
        • Research Questions
        • Hypotheses and Predictions
      • Designing >
        • Variables
        • Sampling
      • Control of Variables
      • Collecting Data >
        • Data Tables
      • Processing Data
      • Interpreting Results
      • Concluding
      • Evaluating >
        • Error Analysis
  • Statistics
    • Descriptive Statistics >
      • Skew and the Normal Distribution
      • Outliers
      • Measures of Central Tendancy
      • Measures of Dispersion
      • Correlation Coefficients
      • Coefficient of Determination
    • Inferential Statistics >
      • Standard Error
      • T-Test
      • ANOVA
      • Kruskal-Wallis
      • X2 Test of Independence
      • X2 Goodness of Fit
    • Glossary of Statistic Terms and Equations
  • SHS Course Info
    • Above & Beyond >
      • Biology Club
      • Pumpkin Carving
      • Scavenger Hunt
      • Science News
      • Wood Duck Project (legacy)
      • Invasive Crayfish Project (legacy)
    • Assessment >
      • Class Grading IB Bio I
      • Class Grading IB Bio II
      • Daily Quizzes (legacy)
      • Lab Practicals (legacy)
    • Class Photos
    • Recommendations
  • Contact
    • About >
      • Philosophy
      • Resume
      • Reflection
      • Favorite Quotes
      • AEF Blog
  • Expeditions
    • Bahamas (2009)
    • Trinidad (2010)
    • Trinidad (2011)
    • Ecuador (2012)
    • Trinidad (2013)
    • Peru (2014)
    • Bahamas (2015)
    • Peru (2016)
    • Costa Rica (2017)
    • Costa Rica (2018)
    • Arizona (2022)
    • Florida (2023)
    • Belize (2024)
    • Costa Rica (2025)
  • Summer Ecology Research
  • Teacher Resources