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  • University of Utah Genetic Science Learning Center
Population Explosion
Conditions of Use:
Read the Fine Print
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Population Explosion is a computer simulation which allows students to manipulate factors to see what happens over time to a population of sheep within an enclosed field. As the simulation runs, a graph shows the dynamic relationship between the sheep population size and their primary food resource, grass. Students can control factors such as initial number of sheep, grass regrowth rate, gain from food, and birthrate. Predation is represented by a “reaper” button which may also be controlled. The speed of the simulation can be set so that students can see more clearly what happens over time, or collect data more quickly, depending on how fast the simulation runs. Directions and a suggested simulation sequence are provided along with prompts so that students can pause and consider their results. A space within the simulation is provided for students to record observations and answers to the prompts. For each step in this suggested sequence, students take a snapshot of graphs they have created and store them in an album. At the end of the activity analysis questions help students connect the activity to wild populations. An optional extension exercise is also suggested.

Subject:
Biology
Ecology
Material Type:
Simulation
Provider:
Concord Consortium
National Science Teachers Association (NSTA)
Provider Set:
NGSS@NSTA
University of Utah Genetic Science Learning Center
A Recipe for Traits
Conditions of Use:
Read the Fine Print
Rating

Students create and decode DNA for man’s best friend to observe how variations in DNA lead to the inheritance of different traits. Strips of paper that represent DNA are randomly selected and used to assemble the dog's DNA. Students read the DNA and create a drawing of their pet, and compare it with others in the class to check for similarities and differences.

Subject:
Biology
Genetics
Material Type:
Activity/Lab
Provider:
National Science Teachers Association (NSTA)
University of Utah
Provider Set:
NGSS@NSTA
University of Utah Genetic Science Learning Center