Howard Hughes Medical Institute
Natural Selection and Evolution of Rock Pocket Mouse Populations
Can evolution repeat itself? Scholars analyze amino acid data in two separate populations of mice. They learn that evolution repeats itself, but natural selection prefers some mutations over others in different environments. Analysis...
Curated OER
Allele and Phenotype Frequencies in Rock Pocket Mouse Populations
In the deserts of Arizona and New Mexico, some tiny creatures show just how quickly natural selection can turn a mutation into an advantageous adaptation. Watch a video about rock pocket mice, who show that one small change can make all...
Howard Hughes Medical Institute
Color Variation over Time in Rock Pocket Mouse Populations
A species-specific look at natural selection, the resource herein examines how adaptations have helped the population of rock pocket mice survive in a changing landscape. To begin, middle or high schoolers watch a 10.5 minute video,...
Serendip
Understanding and Predicting Changes in Population Size – Exponential and Logistic Population Growth Models vs. Complex Reality
Salmonella poisoning impacts over 200,000 people in the United States each year. Scholars learn about the growth of these bacteria using multiple approaches. Then they apply the same growth calculations to endangered species and think...
Curated OER
Lizard Lab
In this detailed and comprehensive multi-day activity, budding evolutionary biologists use real data from lizard populations in the Canary Islands to examine evolution and natural selection.
Curated OER
A Simple Model for Natural Selection
Do you have what it takes to survive as a fit predator or will elusive prey lead to your extinction? Find out in a creative natural selection activity. Using different colors and shapes of grains to represent different species and...
Serendip
Golden Rice – Evaluating the Pros and Cons
More than half the world's population eats rice as a daily staple ... imagine if that rice could prevent illness. Scientists genetically engineered rice to include vitamin A for just that purpose. However, room for debate still exists....
Curated OER
Little Red Hen
First graders explore biology by identifying plant anatomy in class. In this botany lesson, 1st graders read the book The Little Red Hen and identify the methods used in order to grow successful plants. Students discuss other ways people...
Curated OER
Dichotomous Key 2
Students use a dichotomous key to identify unknown fictitious organisms in an assessment designed to be used after a discussion on the use of a dichotomous keys has occurred. Follow up questions about key included.
National Geographic
People and Whales: A History
Whales and people have had a long and sordid history. To understand the impact that biological populations have had on each other, learners conduct research on specific topics related to the whale industry. They use their findings to...
Curated OER
Punnett Squares/Genetics
Ninth graders complete a monohybrid cross and a dihybrid cross. In this biology lesson, 9th graders predict the traits of offspring using the Punnett square. They differentiate recessive and dominant genes.
Curated OER
Cactus Wheel
Students explore plant biology by conducting field experiments outside of class. In this desert plant lesson plan, students discuss how cacti thrive in such dry climates and how dense their populations are. Students utilize action cards,...
National Center for Case Study Teaching in Science
In Sickness and in Health
Based on family history, how likely is it that a couple's children will have a recessive disease? In an in-depth, but easy-to-follow case study, future geneticists learn the story of Greg and Olga, who are hoping to have children, but...
Curated OER
Problem Solving: Metric Conversion
Using a table, students solve 12 word problems about the weights of various foods at the grocery store. The solve addition and subtraction problems as well as convert kilograms to grams.
Curated OER
On the Microbe Trail: Bacteria and Aseptic Technique
Students pour, label, streak, seal and store plates in an incubator. They identify areas in their environment that provide a rich fauna of microbes once they have been swabbed. They identify areas of contamination through a laboratory...
Curated OER
Earthquake!
Students gain an understanding of earthquakes. They examine vocabulary associated with earthquakes, how earthquakes happen, and preventive measures taken to diminish damage or harm in the event that an earthquake should happen.
Curated OER
Six Levels of Ecological Organization
Ninth graders describe the six levels of ecological organizations and give examples of each. They also differentiate between food chains and webs and identify trophic and consumer levels in food chain and food webs.
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