Description:
In this activity students will track a hurricane using
given coordinates.
Materials:
Hurricane tracking maps
List of coordinates for imaginary
Hurricane Zelda
Procedure:
1. Begin the lesson with the initiating questions or
choose some questions of your own. Listen to the students' responses and
try to determine what the students already know about hurricanes and hurricane
tracking. Try to identify any misconceptions students may have and use
this information to alter the lesson to meet the needs of the students.
2. Distribute maps to the students.
3. Have students read the coordinates from the data chart
provided and mark them on their maps.
4. Take students outside the school; limit their observation
time to ten
minutes or less.
5. Have each student fill in information on the observational
chart.
6. If possible, call a school 30 minutes away from you
(30 minutes in the
direction from which the wind is blowing. Each day the
direction may be
different; it will depend on the wind, therefore, the
school will be
different). Ask the school about the weather at that
school.
Teaching Tips:
Make sure the students are aware the exercise is to predict
the weather
because it will then be easier to introduce the relevant/irrelevant
information skill.
If you do not have a psychrometer, two thermometers can
be used instead.
Place a piece of dampened cloth around the bulb of one
thermometer. The
water evaporation will lower the temperature. Since
the rate of
evaporation is dependent upon the amount of water vapor
in the air, the
wet bulb thermometer is used to determine humidity. To
read the chart
remember you need the temperature (dry bulb) and the
DIFFERENCE
between the dry bulb reading and the wet bulb reading.
Assessment:
For Your Information:
Although all of the information recorded by the student
pertains to
weather, not all information is useful in weather prediction.
Each item can
be discussed and its relevancy to weather prediction
determined. For
example, temperature and humidity are important in determining
our
comfort and are irrelevant for predicting weather.
The amount of cloud cover can be described in four words:
Fine: the sky has 1/4 or less of cloud
Fair: the sky has 1/4 - 1/2 of cloud
Cloudy: the sky has 1/2 - 3/4 of cloud
Overcast: the sky is almost completely covered with clouds
When calling another school have all the information
you want written
down. Keep you requests simple and non-technical.
Assessment
Have the students track the weather data from the newspaper
for a week
making their own weather predictions.