Visit to a blind student's school🧑🦯🧑🦯(community medicine)
The geographer’s tools
1.
2. Geographers use 2- and
3- dimensional tools to
learn about the earth.
Geographers use
computer assisted
technology to study the
earth.
3. Globes Help Geographers study the world.
What are some advantages/disadvantages of
using globes?
4. Globes provide a
proportional view of the
earth as it travels
through space.
They are not easily
portable.
You can only see half of
it at a time.
5. Cartographers make maps, which are two-
dimensional representations of earth.
What are some advantages and disadvantages
of maps?
6. Easily portable
Can be drawn to any scale needed
Distortion occurs as maps are flattened
A map projection is a way of drawing the
earth’s surface that reduces distortion
caused by presenting a round earth on flat
paper.
7. Size of scale is determined by detail.
Large scale maps are needed to show many
details. LARGE SCALE = LARGE DETAIL
Small scale maps are needed when fewer
details are shown. SMALL SCALE = SMALL
DETAIL!!!!!
What are some examples of places that
would need a large scale?
What are some examples of places that
would need a small scale?
11. General Reference
maps are used for
people to acquire
information.
Physical maps help you
see the types of
landforms and bodies
of water in a specific
area.
P. 20 in book
12. Political maps show
features on the earth’s
surface that humans
created.
Cities, states,
provinces, territories,
or countries may be on
a political map.
P. 21
13. Topographic maps are types of general
reference maps. They show natural and
man-made features on earth.
14. Thematic maps focus on specific types of
information. (ex: population density,
vegetation, weather maps, resources,
qualitative)
15.
16.
17.
18.
19.
20. Use colors, symbols, dots, or lines to
help you see a pattern.
21.
22. Surveying
• Surveyors observe,
measure, record what
they see in a specific
area.
They use remote sensing
(gathering data from a
distance) to do this.
• Remote sensing includes:
- aerial photography
- satellite imaging
23. Geographers use Landsat
and Geostationary
Operational Environment
Satellite (GOES) to
gather geographic data.
Landsat is a series of
satellites that can scan
the entire planet in 16
days.
GOES orbits the earth
and gathers atmospheric
information used for
forecasting weather.
24.
25. GIS stores geographic
info in a database.
Geographers use GIS
to solve problems.
GIS provides maps,
aerial photographs,
satellite images, and
other data.
Can you think of an
example of a GIS?
26.
27. Originally developed for
military reasons.
Uses 24 satellites to
show exact location on
earth.
Who might use GPS?