lesson study in introductory biology courses scott cooper, roger haro, and bill cerbin university of...
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Lesson Study in Introductory Biology Courses
Scott Cooper, Roger Haro, and Bill Cerbin
University of Wisconsin-La Crosse, USA
What is Lesson Study?Lesson study is a process developed in Japan, in
which a group of teachers jointly
design,
teach,
observe,
analyze,
& revise
a single class lesson, called a Research Lesson.
Develop Student Learning Goals
Design & Plan the Lesson
Teach, Observe, Gather Evidence
of Student Learning
Analyze Evidence & Revise Lesson
Re-teach, Study &Document Lesson
Lesson Study Cycle
Lesson Study Teams in the UW-System
UW-Colleges (Barron, Fond du Lac, Marathon, Marshfield,
Washington, Manitowoc, Sheboygan) UW-Green Bay UW-La Crosse UW-Madison UW-Milwaukee UW-Oshkosh UW-Platteville UW-River Falls UW-Stevens Point UW-Stout
Participation 2006
40 teams
150+ instructors 16 campuses
Our Course: General Biology
Large lecture setting100-150 students3 hours lecture2 hours labClickers
Student bodyFreshmenMixed backgroundMixed majors
ChallengesEngagementInterestProblem-solvingGrading
Biology lessons under development
Evolution – (2005)Survey students
before and after unit with questions about their understanding of how evolution works.
Will not ask if they believe in evolution, just if they understand it.
Ecology – (2005)Students analyze
data on temperature and precipitation and build ecological models to explain any trends.
These models are then tested by examining data from other sites.
Biology lessons under development
Genetics – (2005)Students are
assigned one of the 63 mutations that cause phenylketonuria and have to explain how that specific mutation could cause the disease.
Cells – (2005)Students analyze
data on how specific mutations in a gene in mice lead to susceptibility to ecstasy.
Similar mutations in humans have been linked to deaths in people using the drug.
Populations (2003-4)The Parsitologist’s Dilemma
Many countries have a problem with overpopulation which can lead to environmental damage and a lower quality of life.
These same countries also have a lower life expectancy due to infectious disease.
The “Parasitologist’s Dilemma” is that in curing a disease, one may contribute to overpopulation.
The Lesson
Students are broken into groups and assigned a variable to research.Give groups of students links to data on population
and environmental indicators in 3-4 countries.Students prepare a powerpoint slide with their
assigned variable for the countries. Students predict impact of curing heart disease or
malaria on the population of each country.These slides are presented in lecture as digital
posters.
Heart Disease is the leading cause of death in developed countries.50% of all deaths in US and Europe, typically
>50 years old.Caused by obesity, poor diet, lack of exercise,
diabetes, and genetic factors.
Clot in Coronary Artery
Malaria kills 2-3 million humansannually (90% of malaria deaths are in Subsaharan Africa)
Caused by Plasmodium parasite and transmitted by mosquito
Affects primarily children under age of five and pregnant women(Malaria kills an African child every 30 sec)
Malaria is a leading cause of death in less developed countries.
Variable Predict1. N, r, and G Impact of curing malaria and heart disease on
variable2. Life expectancy Impact of curing malaria and heart disease on
variable3. Kids/woman Impact of curing malaria and heart disease on
variable4. Infant Mortality Impact of curing malaria and heart disease on
variable5. Adult Mortality Impact of curing malaria and heart disease on
variable6. Immigration Emigration Impact of curing malaria and heart disease on
variable7. Ecological footprint Change of variable in 2050 vs. today8. Water supply amt./quality Change of variable in 2050 vs. today9. Population density Change of variable in 2050 vs. today10. Land use Change of variable in 2050 vs. today11. Wildness Change of variable in 2050 vs. today
Assigned Variables
Student Work
Groups of students research assigned variable and turn in powerpoint slide as electronic poster.
These are graded and presented in the next lecture.
Students have a table to fill in the results of their colleagues research.
Life Expectancy for Tanzania, France, and United States & Effects of Curing Malaria and Heart Disease
Tanzania France USA
Life
Expectancy
44 yrs 78.8 yrs 76.6 yrs.
Curing
Malaria
Increase No Impact
No Impact
Curing Heart Disease
No Impact Increase Increase
Source: US Census Bureau
Adult Mortality
N= 60,424,000 ppl
R= 0.5% growth
G= RN = 302,120 ppl
N= 33,065,000 ppl
R= 2.4% growth
G= RN= 704,000 ppl
N= 293,028,000 ppl
R= 1.0 % growth
G= RN= 2,930,000 ppl
Info not available on the WHO website, but the death rate is 18 per thousand in the population
Males: 140 per 1000
Females: 83 per thousand
Will not have a large effect on adult mortality because malaria primarily effects kids
Will slightly lower adult mortality because malaria is prevalent in subsaharan Africa
Will not have a large effect on adult mortality because malaria is not prevalent in the US
Will lower adult mortality because HD is the leading killer of adults in developed countries
Will not significantly lower adult mortality because it is not a big killer of adults in Tanzania
Will lower adult mortality because HD is the leading killer of adults in developed countries
France Tanzania USA
N,R,G
Adult Mortality
Curing Malaria
Curing Heart Disease
Source: US Census Bureau, World Health Organization
Males: 133 per 1000
Females: 60 per 1000
United States
France Tanzania
Wildness 35.89% .04% 9.3%
Current Population
290,342,554
60,180,529 35,922,454
Growth Rate
.92% .42% 1.72%
Effect of Pop. On
Wildness in 2050
Because the growth rate is positive in all three countries, the wildness will be depleted as a result of necessary
expansion.
ResultsStudent Engagement
Difficulty sympathizing with the malaria victims.
Tuned out when the environment and consumption were discussed.
Link between variables and population or environment were not clearly stated.
RevisionsIncluded more
pictures of children with malaria.
Decreased number of slides on consumption, and had students do research themselves.
Required statement of impact on slides students turned in.
College Lesson Study Project
Project homepage: www.uwlax.edu/sotl/lsp
Project Blog: http://lessonstudy.blogs.com/
Sample Lesson Studies: http://www.cfkeep.org/html/gallery.php?id=75749626546865
Contact: Bill Cerbin, [email protected]