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Name:__________________
MAP4C Unit 3 Performance Task: Temperatures in North America
Communication:
/5
Level 1 (2.5-3)
Organizes solutions with
complete explanations and
details such as a welllabelled diagram and
correct use of terminology
and conventions
Solutions have limited
organization: brief,
with incomplete or
incorrect diagrams or
explanations, and no
details
Level 2 (3-3.5)
Solutions have some
organization: diagrams
or explanations are
unclear or confusing,
with some details
included
Level 3 (3.5-4)
Level 4 (4-5)
Solutions have considerable
organization: diagrams or
explanations may be slightly
unclear, with most details
included and mostly proper use
of terminology.
Solutions have thorough
organization: diagrams and
explanations are full and
clear, with all details
included and excellent use
of terminology.
Latitude and Longitude describe the location of places on Earth.
 Latitude describe the location in degrees north or south of the Equator
 Longitude describes the location in degrees east or west of the Prime Meridian.
1. Predict whether there is a relationship between the mean January temperature of a North American
City and the city’s position north of the Equator (latitude). Explain: [2 TI]
2. Using the data in the attached table, create a scatter plot for the cities’ mean January temperatures
and latitudes. Then describe the correlation. Hint: The latitude is the independent variable. [5 A]
3. Draw the line of best fit and determine the equation of the line. (Your spreadsheet software can do
this for you). [2 A]
4. Predict whether there is a relationship between the mean January temperature of a city in North
America and the city’s position west of the prime meridian (longitude). Check your prediction: [4
TI]
5. Make your own prediction about the data. Choose a sample from the data to make a prediction.
Check your prediction. (ex: January temperatures and latitude of Cities on the East coast, or west
coast or mid-continental.) [3 TI]
Temperatures in North America Data:
City
Mobile, AL
Montgomery, AL
Little Rock, AR
Los Angeles, CA
San Francisco, CA
Denver, CO
Wilmington, DE
Washington, DC
Jacksonville, FL
Key West, FL
Miami, FL
Atlanta, GA
Chicago, IL
Indianapolis, IN
Wichita, KS
Louisville, KY
New Orleans, LA
Portland, ME
Boston, MA
Detroit, MI
St. Louis, MO
Helena, MT
Omaha, NE
New York, NY
Charlotte, NC
Raleigh, NC
Cleveland, OH
Oklahoma City, OK
Ave. Temp.
in January
44
38
31
47
42
15
26
30
45
65
58
37
19
21
22
27
45
12
23
21
24
8
13
27
34
31
21
28
Latitude
(°N)
31.2
32.9
35.4
34.3
38.4
40.7
40.5
39.7
31.0
25.0
26.3
33.9
42.3
39.8
38.1
39.0
30.8
44.2
42.7
43.1
39.3
47.1
41.9
40.8
35.9
36.4
42.3
35.9
Longitude
(°W)
88.5
86.8
92.8
118.7
123.0
105.3
76.3
77.5
82.3
82.0
80.7
85.0
88.0
86.9
97.6
86.5
90.2
70.5
71.4
83.9
90.5
112.4
96.1
74.6
81.5
78.9
82.5
97.5
Philadelphia, PA
Charleston, SC
Galveston, TX
Houston, TX
Seattle, WA
Milwaukee, WI
St. John's
Charlottetown
Halifax
Fredericton
Québec
Montréal
Ottawa
Toronto
Winnipeg
Regina
Edmonton
Calgary
Vancouver
Victoria
Whitehorse
Yellowknife
24
38
49
44
33
13
22
17
21
14
9
13
12
23
-1
2
9
14
37
38
-1
-18
40.9
33.3
29.4
30.1
48.1
43.3
47.9
46.3
44.7
45.8
46.8
45.5
45.3
43.6
49.9
50.4
53.5
51.1
49.2
48.4
60.6
62.5
75.5
80.8
95.5
95.9
122.5
88.1
52.5
63.1
63.5
66.5
71.3
73.0
75.7
79.6
97.2
104.7
113.5
114.0
123.2
123.3
135.6
114.5