Wednesday, March 31, 2010



Which type of flower has experiences the greatest percentage loss?

Which type has experienced the lowest percentage loss?

Which type of flower is most common?

Tuesday, March 30, 2010

Another Supernova


Compare this supernova light curve to yesterday's. What similarities and differences do you notice?

Come up with some ideas to explain any differences?

Monday, March 29, 2010

Supernova Light Curve


At time 1, what was the magnitude of the supernova?

At what time is the peak of the supernova.

Magnitude is inversely related to brightness (for example magnitude 15 is brighter than magnitude 18). What is the maximum brightness of this supernova?

Ice in the Arctic

In February of 1985 what percentage of ice in the arctic was 6 or more years old?

In February of 2007 what percentage of ice in the arctic was 6 or more years old?

In February of 1985 what percentage of ice in the arctic was less than a year old?

In February of 2007 what percentage of ice in the arctic was less than a year old?

What do you think this change means?

Saturday, March 27, 2010

Learning Retention


What method leads to the highest learning retention?

Which method is least effective?

How much do people remember from discussion groups?

Friday, March 26, 2010

Returning to College


Are students more likely to return to an independent or public college?

In what years were there increases in student retention?

Thursday, March 25, 2010

Teacher Retention


What percentage of teachers keep teaching after 1 year? After 5?

What percentage have left after 3 years?

Wednesday, March 24, 2010

Bicycle Production


In what years have there been peaks in bicycle production?

In what years were the numbers of bicycles and cars produced the most similar?

Tuesday, March 23, 2010

Greenhouse Gas Emissions


How many kg per person per km does a person in a fuel efficient car with 3 other people generate?

If a person driving alone in a large 4WD vehicle travels 10 km, how much greenhouse gas is emitted?

Monday, March 22, 2010

Organic Acreage


How many acres were devoted to organic crops in 2004?

In which year were there 59,207 acres devoted to organic crops?

Describe the trend of this graph.

Sunday, March 21, 2010

Heartrate Graph


What is the aerobic zone for your age?

If a 30 year old wants to exercise in the aerobic zone,  how many times per minute should her heart be beating?

A 60 year old measures his heartrate and it is 150 beats per minute. Which zone is he in?

Describe the trend this graph shows.

Saturday, March 20, 2010



Represent the information above on a different type of chart or graph.

Friday, March 19, 2010

Musical Instrument Frequency Ranges


Which instrument can play the biggest range of frequencies?

Which instrument has the smallest range?

Which instrument has the biggest range of harmonic frequencies?

Which instrument doesn't have any harmonics?

Thursday, March 18, 2010

Exoplanet Light Curve


This graph shows the light from a star measured over time. The amount of light goes down when the planet goes in front of the star and obscures some of the light.

About how many hours did the full transit take?

How much did the brightness of the star change from the beginning of the transit to the middle?

Wednesday, March 17, 2010

Stimulus Job Creation By Agency


According to this graph, which department had the most jobs saved or created?

Which had the fewest?

Tuesday, March 16, 2010

Monday, March 15, 2010

Facebook and Google


What percent of the market share of visits did Facebook have in March 2009?

What percent did Google have in March 2009?

By how much did Facebook's market share increase over the last year?

Sunday, March 14, 2010

Carbon Footprint of Food


Which foods leave the greatest carbon footprint?

Which of the meats listed has the least impact?

Saturday, March 13, 2010

Food Insecurity in America


Which households are most likely to be food insecure?

What difference do you see between 2007 and 2008?

Friday, March 12, 2010

Arable Land and Polulation


Which areas have the highest population?

Which areas have the highest amount of arable land per person?

Has arable land per person been increasing or decreasing over time? Why?

Thursday, March 11, 2010

World Fertilizer Consumption


Which areas were using the most fertilizer in 1960?

In 1980?

In 2000?

Which areas have increased their use of fertilizer?

Have any areas decreased their use of fertilizer?

Wednesday, March 10, 2010

Population and Food


In which years has their been more food than needed?

Does this projection show that there will be enough or not enough food in 2020?

Tuesday, March 9, 2010


View full size here

After World War II, antibiotics earned the moniker “wonder drugs” for quickly treating previously-incurable diseases. Data was gathered to determine which drug worked best for each bacterial infection. Comparing drug performance was an enormous aid for practitioners and scientists alike. In the fall of 1951, Will Burtin published this graph showing the effectiveness of three popular antibiotics on 16 different bacteria, measured in terms of minimum inhibitory concentration.

For which diseases was penicillin most effective?

For which diseases was neomycin most effective?

Monday, March 8, 2010

Puppet Supplies


Which supply do the students need the most of?

The least?

The feathers will be divided equally among 12 students. How many feathers will each student get?

Sunday, March 7, 2010



Which insect was the most common?

The least common?

How many ladybugs were counted?

Saturday, March 6, 2010

Cooking at Home


In 1993, what percentage of families was cooking two or more hot meals at home each day?

What about in 2001?

In 2001, what percentage of families was cooking one hot meal or less per week?

What about in 1993?

Describe the trend that this graph shows.

Friday, March 5, 2010

Percentage of GDP Spent on Health Care


Which of the above countries spends the most on health care? The least?

What percentage of their GDP do Germans spend?

Thursday, March 4, 2010

Breastfeeding by Ethnicity


Which group has the highest breastfeeding rate?

Which group has the lowest breastfeeding rate?

Which group has a rate of 74.0% of children ever breastfed?

Wednesday, March 3, 2010

Dog Breed and Life Expextancy

Life expectancy of popular dog breeds:
Afghan Hound (12.0)
Airedale Terrier (11.2)
Basset Hound (12.8)
Beagle (13.3)
Bearded Collie (12.3)
Bedlington Terrier (14.3)
Bernese Mountain Dog (7.0)
Border Collie (13.0)
Border Terrier (13.8)
Boxer (10.4)
Bull Terrier (12.9)
Bulldog (6.7)
Bullmastiff (8.6)
Cairn Terrier (13.2)
Cavalier King Charles Spaniel (10.7)
Chihuahua (13.0)
Chow Chow (13.5)
Cocker Spaniel (12.5)
Corgi (11.3)
Dachshund (12.2)
Dalmatian (13.0)
Doberman Pinscher (9.8)
English Cocker Spaniel (11.8)
English Setter (11.2)
English Springer Spaniel (13.0)
English Toy Spaniel (10.1)
Flat-Coated Retriever (9.5)
German Shepherd (10.3)
German Shorthaired Pointer (12.3)
Golden Retriever (12.0)
Gordon Setter (11.3)
Great Dane (8.4)
Greyhound (13.2)
Irish Red and White Setter (12.9)
Irish Setter (11.8)
Irish Wolfhound (6.2)
Jack Russell Terrier (13.6)
Labrador Retriever (12.6)
Lurcher (12.6)
Miniature Dachshund (14.4)
Miniature Poodle (14.8)
Norfolk Terrier (10.0)
Old English Sheepdog (11.8)
Pekingese (13.3)
Random-bred / Mongrel (13.2)
Rhodesian Ridgeback (9.1)
Rottweiler (9.8)
Rough Collie (12.2)
Samoyed (11.0)
Scottish Deerhound (9.5)
Scottish Terrier (12.0)
Shetland Sheepdog (13.3)
Shih Tzu (13.4)
Staffordshire Bull Terrier (10.0)
Standard Poodle (12.0)
Tibetan Terrier (14.3)
Toy Poodle (14.4)
Viszla (12.5)
Weimaraner (10.0)
Welsh Springer Spaniel (11.5)
West Highland White Terrier (12.8)
Whippet (14.3)
Wire Fox Terrier (13.0)
Yorkshire Terrier (12.8)


Represent some or all of the data above using a graph or chart.

Tuesday, March 2, 2010

Brain Weight


Do males of females have heavier brains?

What happens to brain weight as children grow up?

What happens to brain weight as adults age?

Why does the second graph show a downward trend, when the first graph shows that brain weight goes up during childhood?

Monday, March 1, 2010

Stages of Brain Development in an Infant


At what age do peer social skills begin to develop?

Whuch developments begin before birth?

Which developments take the longest time?