Aquatic Environment
Since water covers 70 percent of the Earth, it is especially important to
discuss with students the ways in which technology impacts the aquatic
environment. Even in the water, balance is the key. These resources will help
your students understand how problems result when there are too many or too few
organisms. Students can also learn that they may unknowingly contribute to
problems in the aquatic environment through routine activities. You and your
mathematics and science colleagues might be interested in collaborating to help
students understand the skills and concepts involved in these activities.
Is technology part of the problem or part of the solution to the global decline
of coral reefs? Students who complete this module, which is part of the
NASA-sponsored Exploring the Environment web site, will learn that the answer
is BOTH. The module follows a problem-based learning approach to help students
consider the changes in the environment related to coral reefs. Its jigsaw
puzzle metaphor guides students' consideration of some variables that
contribute to changes in coral reefs. The module's graphs present an excellent
opportunity for students to interpret the meaning found in data displays. In
addition, the module contains background information about environmental
changes, their causes, and technological methods to detect them. MSP full record
Harmful algal blooms, also known as HABs, are increasing in frequency around the
world. Why might this be happening? What can be done to find some answers?
Students intertwine aspects of technology, science, and mathematics as they
conduct this activity. They consider how technology, such as transportation and
manufacturing, promotes the development of HABs. Even though students are not
necessarily working with harmful algae, they conduct experiments to determine
if sunlight and nutrient enrichment have an impact on the increase in algae
population size. Students use color and smell as a qualitative measurement and
cell counts to quantitatively determine population size. Math skills come into
play when they calculate population sizes based on sampling techniques and
graph their results. MSP full record
How can it be that I am polluting just by walking my dog or washing my car? This
article and its associated activities help students make responsible decisions
about how they perform routine tasks to limit their impact on water quality.
The article offers environmentally friendly tips about tasks such as car
washing, motor maintenance, and lawn fertilization. You can pick and choose
from a list of four activities to help your students study about nonpoint
source pollution. Your students can exercise their math skills when they use
fractions to determine whether it is better to wash with repeated small
dilutions of dirt with water or one big dilution, calculate population density,
and read a pie chart. Students strategize ways to reduce the bacteria entering
watersheds from pet waste and perform experiments to see the effects of
fertilizer runoff on dissolved oxygen in the waterways. Not only will your
students learn technology, math, and science, but they will see how applying
what they have learned will improve their environment. MSP full record
"Students, pretend you are journalists and your magazine assigned you to write
an article to help fishermen predict where the good fishing spots will be off
the New Jersey coast." What an exciting and rich cross-curricular task! As they
work in groups to research the story, students learn about the food web in
oceanic ecosystems, scientific and technological careers associated with the
aquatic environmental, and tools to collect and analyze environmental data. The
students gather information by viewing videos and analyzing satellite images
and graphs of data collected with Conductivity-Temperature-Depth and
Fluorometer sensors. Reading and interpreting graphs is a key part of this
activity. The students write their magazine articles as the culminating
activity of the lesson. Make sure to open the teaching tips; they offer great
instructional ideas and background information, as well as a rubric for scoring
the individual and group aspects of the project. MSP full record
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Copyright
May 2007 — The Ohio State University. This material is based upon work
supported by the National Science Foundation under Grant No. 0424671. Any
opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect the views of
the National Science Foundation.
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This work is licensed under a
Creative Commons License.
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