Authentic or Project Assessment
Are students capable of using the Internet
to collect pH data from various schools around the country and
analyze the data with respect to geographical location and acid
rain? Try the assessment below, or find out more about authentic/project
DIVIDE the class into groups of four students
with the following roles:
- Contact Coordinator: Coordinates correspondence with
- Equipment Handler: Distributes and manipulates materials.
- Recorder: Records results.
- Speaker: Shares results with the class and with the
other schools participating.
ASSIGN a geographic region to each group.
Each Contact Coordinators SELECTS one school on the Internet
from their region and, via e-mail, INVITES
a representative from that school to participate in a data collection
NOTE: The Contact Coordinators can write e-mail
to a schools from the following hotlists:
Equipment Handlers COLLECT rain water samples.
USE pH testing strips to TEST the samples of water. The Recorders
RECORD the results of each water sample test on the lab sheets.
Contact Coordinators SHARE test methods and
results with each school. Recorders RECORD the data. Is there
evidence of acid rain? Schools can share other information, too.
Is their community urban or rural? Would this make a difference?
What other questions might be relevant?
Speakers PRESENT results to the class. Students
GRAPH the information from all groups. Students MAKE conclusions
about acid rain. What statements can be made? What evidence supports