http://www.ei.lehigh.edu/nes/luc
Environmental Issues: Land Use Change is an interdisciplinary
technology-embedded middle school science unit. This curricular unit
focuses on how human activities influence environmental changes related
to land use. Students use geospatial information technology (GIT) tools
including Google Earth and remotely sensed images to investigate modern
day land use issues and land use change over time.
The investigations in this unit begin with an examination of the spatial
and environmental aspects of a shopping mall in Huntsville, Alabama.
Students learn to use basic elements of aerial photo interpretation
(including tone, size, texture, pattern, shadow, site, and association)
to aid in identifying objects in aerial photographs. They investigate
how shopping malls change natural environments and alter its immediate
surroundings to understand concepts involved in the formation of urban
heat islands.
Next, comes a study of Atlanta’s urban heat island and the consequences
of urban deforestation. Students learn how communities can use certain
heat island reduction strategies to reduce the impact of an urban heat
island effect. They also interpret land use maps of the greater Atlanta
area to understand environmental issues that are typically associated
with sprawl.
Students investigations continue with a case study of the Lehigh Valley
area. They examine the significance of the location of shopping malls
in the Lehigh Valley area and compare the land use around five mall
areas in the Lehigh Valley using Google Earth.
Students then use remotely sensed images to recognize land use patterns
of diverse areas in our world. They examine and interpret time-sequenced
satellite data and aerial photographs of urban areas to interpret geographic
growth patterns. In addition, they examine landscape changes over time
through analysis and interpretation of satellite data images and aerial
photographs.
In the culminating activity, students recommend a plan for locating
a new Wal-Mart Supercenter in the greater metropolitan Lehigh Valley
area to have minimal impact on the environment. Students use Google
Earth to analyze and evaluate features of different land areas for proposed
development sites. They develop a proposal to apply “smart growth”
principles to their planning decisions and communicate their plan in
a simulated planning commission meeting.