The Rocky Road to Statistical Literacy Marion Smith ACCOLEDS Training, December 6, 2002.
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Transcript of The Rocky Road to Statistical Literacy Marion Smith ACCOLEDS Training, December 6, 2002.
![Page 1: The Rocky Road to Statistical Literacy Marion Smith ACCOLEDS Training, December 6, 2002.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649e455503460f94b39c52/html5/thumbnails/1.jpg)
The Rocky Road to
Statistical LiteracyMarion Smith
ACCOLEDS Training, December 6, 2002
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What is Statistical Literacy?
• ability to: – understand, interpret statistical data– critically evaluate statistical information and
data-related arguments– to use the information in context of daily life– to discuss or communicate one’s reactions.
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Does it matter?
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thousands % thousands % thousands %Population aged 15 years and older24,260 11,937 12,323 Golf 1,802 7.4 1,325 11.1 476 3.9Hockey(ice) 1,499 6.2 1,435 12 65 0.5Baseball 1,339 5.5 953 8 386 3.1Swimming 1,120 4.6 432 3.6 688 5.6Basketball 787 3.2 550 4.6 237 1.9Volleyball 744 3.1 394 3.3 350 2.8Soccer 739 3 550 4.6 189 1.5
Most popular sports1
1998Total Male Female
1. Persons frequently play more than one sport.Source: Statistics Canada, General Social Survey, 1998.
Canadian Statistics Table
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Recent article: SFU to revamp curriculum
to improve students’ writing skills
“… its graduates don’t always have the writing skills, competency with numbers or breadth of knowledge that are needed in the workplace ...”
Janet SteffenhagenThe Vancouver Sun
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SFU will overhaul its undergraduate program:
John Waterhouse Academic Vice-President, SFU
“What we wish…is that our students have a facility in quantitative reasoning, the ability to communicate effectively in writing and some breadth of exposure to subject areas of a liberal arts university”
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John WaterhouseThe Vancouver Sun
Nov 25, 2002
“all graduates should be ‘good consumers of quantitative information’…they ought to be able to understand statistics…[be able to] ...read a report that contains statistical analysis. They ought to be familiar with the logic that goes along with quantitative analysis even though they may never be mathematicians or statisticians.”
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The situation in Canada
Research on literacy
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International Adult Literacy Survey
• Statistics Canada and OECD• 20 nations measured on 3 scales:
– prose, document, quantitative• ‘Literacy in the Information Age’
June 2000
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Literacy levels• Level 1: very poor skills• Level 2: can deal only with simple, clearly laid
out text• Level 3: suitable minimum skill level for coping
with demands of everyday life. Roughly the level required for secondary school completion and college entry
• Levels 4 and 5: higher-order information processing skills
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Three types of literacy skills
• Prose literacy - knowledge and skills needed to understand and use text information
• Document literacy - able to locate and use information in various formats
• Quantitative literacy - can apply arithmetic operations to numbers embedded in printed materials
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Prose Literacy• Understand and use editorials, news stories,
brochures, instruction manuals
Prose Literacy, Canada, 1994
16.6
25.6
35.1
22.7
0
5
10
15
20
25
30
35
40
Level 1 Level 2 Level 3 Level 4/5
Level 1 lowest / Level 5 highest
Per
cen
t
42.2%
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Document Literacy• Job applications, payroll forms, transportation
schedules, maps, tables and charts
Document Literacy, Canada, 1994
18.2
24.7
32.1
25.1
0
5
10
15
20
25
30
35
Level 1 Level 2 Level 3 Level 4/5
Level 1 lowest / Level 5 highest
Per
cen
t
42.9%
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Quantitative Literacy• Balancing a chequebook, figuring out a tip,
completing order form, determining amount of interest on a loan
Quantitative Literacy, Canada, 1994
16.9
26.1
34.8
22.2
0
5
10
15
20
25
30
35
40
Level 1 Level 2 Level 3 Level 4/5
Level 1 lowest / Level 5 highest
Per
cen
t
43%
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05
10152025303540
Percent
Level 1 Level 2 Level 3 Level 45
Level 1 lowest / Level 5 higest
Literacy, Canada, 1994 Prose / Document / Quantitative
Levels 1&242.4%42.9%43.0%
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Statistical Literacy
• Combines document and quantitative literacy:
– ability to locate and use information in various formats: schedules, tables, charts
– knowledge and skills to apply arithmetic operations, either alone or sequentially.
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What’s happening in classrooms
Some examples
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Examples from the classroom
1. Elementary Data Management
2. Creativity in Grade 10 Math
3. Data use in Business Class
4. Using E-STAT for Marketing
5. Social Issues in Math Class
6. Using data in Debating
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Data Management in Elementary
• Displaying, analyzing and interpreting numerical information — one math strand least effectively taught in elementary
• Use Canadian information in teaching math • Uses the booklet Canada at a Glance with
Grade 5 and 6 classes
Dr. David Mandzuk, University of Manitoba
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Canada at a Glance• Combines Math, Social Studies,
& educational technology• Uses Demographics section:
pop. by prov/terr, major urban areas, marital status, age groups, ethnic origin, etc.
• First: teaches graph types: pie, line, bar
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Preparation• Teaches purpose and
organization of booklet• Interprets appropriate tables so
that students understand the information
• In computer lab, teaches how to enter data on spreadsheet
• Students prepare a series of graphs following a contract or question sheet
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Student results• Learn how to manage data• Consider best graphs for
display of data• Produce appropriate graphs• Show they understand the
graphs by answering the contract or question sheet
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Major challenges• Diverse ability among
students• Computer availability• Need to troubleshoot.
Students need to be taught how to deal with data entry errors, double checking, what to do when graph doesn’t reflect the data.
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Creativity in Math
• Grade 10 Academic Math students• Objective: to model data relationships using
quadratic and linear functions• Math can:
– apply to the real world– help model past behaviour– predict future trends
Tom Steinke, Marie Brazeau, Joel Yan
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Creativity in Math
• Students learned about linear and quadratic functions• Learned how to use Dynamic Statistics Software from
Fathom• Introduced to STC website• Selected topics of interest and looked for supporting
data on website• Incentive: contest for most creative analysis and
results
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Creativity in Math
• Each student provided:– reasons for choosing their issue– their hypothesis– the data used– results of data modelling: mathematical relationships
and equations describing those relationships– predictions of future trends– conclusions and questions for further analysis
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Creativity in Math
• Some topics chosen:– college enrollment and employment data– motor vehicle deaths vs. seatbelt use– youth employment vs. youth crime (does
employment decrease incidence of crime?)
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Creativity in Math
• Winning project #1:– Relationship between women with full-time
jobs and the incidence of childbirth in Canada, 1976 - 1999. Hypothesis was that increase of women working full time would result in a decrease of birth rates
– Also found that the baby boom echo could be closely modeled by a parabola
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Creativity in Math
• Winning project #2:– Relationship between annual beer production,
consumption per capita and percent of population males 20 -24 Conclusion: there is a correlation between average beer consumption and percentage of males age 20-24
– Correlation did not hold true with % of males in other age cohorts
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Creativity in Math
• Winning project #3:– Hockey statistics were used to examine
performance of Paul Kariya and Teemu Selanne of the Mighty Ducks
– Conclusion: each player performed better when they played together than when apart
– Conclusion: career hockey statistics can be modeled by a parabola reflecting development, peaking and decline of skills
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Creativity in Math
• The teacher’s observations:– students who normally performed poorly in a
traditional classroom did better in this project oriented environment
– these students were understanding concepts and methods faster, and sometimes better than the best students
– students were very motivated.
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Using data in Business Class Donna Brunton, Newport, N.S.
• Data Processing 12• Students build website for fictional business• Must show that the business will be successful
by using data, eg. unemployment rate, household income, education levels, sex/age, etc.
• Create graphs with E-STAT and spreadsheets.
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Using E-STAT in Business Class Biki Kochhar, Coquitlam, B.C.
• Marketing 11 and 12: Market Segmentation• Divide population by demographic
characteristics• Discuss target markets for The Gap, Banana
Republic, Seattle’s Best Coffee• Use E-STAT to find size of target markets• Consider whether locations are appropriate
and if there are opportunities for expansion
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Using E-STAT in Business Class
• Research market for a hypothetical business• Data: male/female, single people, selected
mother tongue, immigrants, private households• Use computer technical skills and analytical
skills to interpret data• Draw conclusion: Coquitlam could support a
skateboard shop.
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Social Issues in Math Class
• Grade 12 Mathematics of Data Management• Students must “carry out a culminating project
on a topic or issue of significance that requires the integration and application of the expectations of the course”
• In preparation, students participate in a full-class activity…
Geoffrey Roulet, Queen’s University
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Social Issues in Math Class
• Define an issue• Formulate questions• Locate, extract and analyze data from E-STAT• Make supported inferences and predictions
from statistical measures...
Students:
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Social Issues in Math Class
• “Some people claim that Canadian society is becoming increasingly dangerous and that tough new laws and punishment are required to return the country to the safer conditions of years past. – Do you agree or disagree with this view?– Is crime on the increase?– Are new laws and punishment needed?”
First: Formulating the questions:
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Social Issues in Math Class
E-STAT Table 252-0001
Crimes, by actual offenses, annual
(Terminated)
Canada: Crime vs. Year
3,000,000
1962 -1999 r = .96but 1991 - 1999 r = -.98
TotalCriminalCode
1962 1999Year
500,000
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Social Issues in Math Class
• Incidence of crime prompts further investigation
• Why does the crime rate vary year to year?• What causes people to commit more crime in
one year than another?• Frame another task for students...
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Social Issues in Math Class
• “Some people do not see “law-and-order” policies as the best way to reduce crime...there are….social and demographic factors….that might help us...reduce crime…”
• Identify a social or demographic factor that might be related to crime– One selected factor is poverty: using low-
income data as a proxy...
New question:
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Social Issues in Math Class
Canada: Crime vs. Low Income3,000,000
2,000,000
TotalCriminalCode
1,500,000 2,700,000No. Low Income
Table 202-0802 - Persons with
low income before and
after tax
R = .57
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Social Issues in Math Class
• There is not a strong case to link low income and crime
• Students learn that in dealing with complex interacting social conditions easy answers do not necessarily have simple answers
• Another question: is there link between young adult males and crime?– Plot crime vs. males 18-24 and 25-30...
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Social Issues in Math Class
Canada: Crime vs. Males 18-243,000,000
1,000,000
TotalCriminalCode
1,410,000 1,770,000No. Males 18-24
R = -.18
Table 051-0001 - Estimates of population by
age group and sex
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Social Issues in Math Class
Canada: Crime vs. Males 25-30
3,000,000
1,000,000
TotalCriminalCode
800,000 1,320,000No. Males 25-30
R = .78
Table 051-0001 - Estimates of population by
age group and sex
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Social Issues in Math Class• Whole class reports their results• Build on results to suggest measures that
society might use to reduce crime• Debate can be intense, but are reasoned and
civilized because of use of data and statistical methods
• Math, technology and STC data combined to encourage serious rational discussion of significant social issues.
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Debating with Talented & Gifted
• Weekly debates, Grade 9• Involve research, writing, speaking, listening
and teamwork• Avoid ‘whale debates’• Find issues that genuinely divide the class,
eg. moral dilemmas
Sam Allison, Greenfield Park, Québec
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Debating with Talented & Gifted
• Major problem: finding Canadian evidence to add intellectual depth
• www.statcan.ca good site for evidence– eg. TV watching, bullying, teenage smoking
• Canadian rather than American trends• Long term data cycles
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Debating with Talented & Gifted
• Students learn to research and present data to support their argument
• They develop a facility in responding to opponent’s evidence, logic and ideas
• Knowledge of data or even definitions can help win a debate
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Debating with Talented & Gifted
• Debates may be both memorable and hilarious
• One debate combined Canadian data on unionization and working hours with information on Santa’s elves.
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The technology situation in schools
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Technology issues
• equipment: • age• connectedness• tech support• variety of hardware/software
• access to equipment by the classroom teacher• location: library, IT class• few teachers have a computer on their desk
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Internet Access: an example
• Surrey School District– access through:
• 1. PLNet (BC Ministry of Education)• 2. Firewall - dynamic IP addresses
behind firewall• 3. MAC nanny
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Teacher issues
• large variation in ability, interest• limited time to find resources and adapt them• already have a “filing cabinet full of lessons”• tech-phobia• stats-phobia
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E-STAT
• Schools register, but don’t use E-STAT• Takes effort to introduce and use E-STAT in the
classroom– the payoff must be good for the time invested
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What do we do?
Education Outreach Program
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The outreach program
• Learning resources website– pathways for Students, Teachers &
Postsecondary users– lesson plans, teachers’ kits– E-STAT– recommended publications & resources
• Education representatives
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Lines of communication• Learning Resources Bulletin - e-mail
– regional reps distribute to certain contacts• Network Nuggets (3000)• Webbits (1000)• TechTalk (700)• EdInfo
• Learning with Canadian Information• Geoghist listserv
– secondary and postsecondary
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Major initiatives
• Textbook publishers• Galileo• Manitoba Education’s Curriculum Navigator• Critical Thinking Co-operative• School Libraries in Canada
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From a UBC education student
“I think that by introducing students to StatsCan in social studies classes — perhaps they won’t be scared of stats courses later on in university.”
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Thank you