Gorton High School, Westchester
Summer Research Program for Science Teachers
Adapted from Sciencelink
Subject: Living Environment (New York State Biology)
Grade Level: 9th and 10th Grades
Time: Three class periods - 42 minutes each
Unit: Evolution, Genetics
Objective: Students will be able to:
· Formulate hypothesis and graph
· Explain the key concepts of natural selection
Students should be familiar with the terms gene, allele, species, population, gene frequency and heritability from genetics.
Natural Selection is an evolutionary process by which the most adaptable individuals in a particular environment survive. Living things that are well adapted to their environment survive and reproduce. Those that are not well adapted don’t survive and reproduce.
Different sizes of jelly beans
Brainstorm with students key terms:
evolution, adapt, survival of fittest, reproduction, genes, traits, environment, selection, competition, predator, prey
Day Three Simulation of Natural Selection
In this activity students act as predators of jelly beans which represent any species to simulate evolution by natural selection. Students are told that smaller jelly beans are easy to catch and taste better while bigger jelly beans are faster but taste bitter.
New York State Science Standards:
Standard 1. Performance indicator 2.3, 3.1
Standard 4. Performance indicator 3.1a-3.1i, 4.1a, 6