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One
of
the
primary
tools
that
demographers
use
to
understand
population
is
the
age
structure
diagram,
a
graphic
representation
that
shows
the
distribution
by
ages
of
females
and
males
within
a
certain
population.
This
lesson
describes
how
these
diagrams
are
constructed
and
interpreted.
It
includes
an
activity
in
which
students
use
online
data
on
Native
American
populations
from
the
United
States
Census
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Choosing & Using this resource...
Related resources and collections
This resource requires :
Male Population by Age, Race and Hispanic or Latino Origin for the United States: 2000 -
http:/
This resource requires :
Female Population by Age, Race and Hispanic or Latino Origin for the United States: 2000 -
http:/
This resource is included in the following collections:
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In this activity, students investigate the effects of automobile pollution on plant growth by making measurements on two populations of leaves, one from within 10 meters of a busy road and a population of the same species situated more than 20 meters away. They will choose a method for measuring the leaves, create a table for their data, and test their hypotheses by performing a t-test.
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Choosing & Using this resource...
Pedagogical help
Skills:
Read (1)
Related resources and collections
This resource requires :
This resource is included in the following collections:
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This
lesson
presents
a
comparison
of
the
outlook
for
energy
independence
between
the
United
States
and
France.
Topics
include
the
average
per
capita
energy
usage
between
the
two
countries,
differences
in
types
of
energy
usage,
and
the
strong
reliance
by
the
French
on
nuclear
generation
of
electricity.
There
is
also
a
discussion
of
the
future
of
nuclear
power
in
France,
as
environmental
and
economic
...
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Choosing & Using this resource...
Related resources and collections
This resource requires :
Emissions Comparison Calculator -
http:/
This resource is included in the following collections:
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This
lesson
introduces
the
idea
that
rates
and
directions
of
plate
movements
can
be
measured.
The
discussion
centers
on
the
use
of
mantle
'hotspots'
to
determine
plate
motions.
Examples
include
the
Hawaiian
Islands,
the
Galapagos
Islands,
and
the
Yellowstone
hotspot.
The
lesson
includes
an
activity
in
which
students
use
online
resources
to
answer
questions
about
the
Galapagos
Islands
and
measure
plate
...
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Choosing & Using this resource...
Related resources and collections
This resource requires :
The Geology of the Galapagos Islands -
http:/
This resource requires :
This resource is included in the following collections:
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This
lesson
provides
an
overview
of
the
various
types
of
interactions
between
tectonic
plates.
The
discussion
uses
the
analogy
of
a
cracked
egg
to
describe
the
tectonic
plates
composing
Earth's
crust.
Other
topics
include
the
concentrated
earthquake
and
volcanic
activity
associated
with
plate
boundaries,
types
of
interactions
at
the
boundaries,
and
how
plate
motions
are
affecting
the
Atlantic
and
...
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Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
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