TAKS Objective 5

1
TAKS Objective 5

• The student will demonstrate an understanding of
  Earth and Space systems

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TEKS Science Concept 8.14 B

• Identify that change in environmental conditions
  can affect the survival of individuals and of
  species

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Lesson Objective

• The student will be able to describe
  environmental conditions that can have
  significant impact on the survival of individuals
  and species.

4
Question

• True or False With intervention any species can
  be saved from extinction.

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Once a species is threatened or endangered it is
not always possible to remove the threat or
endangerment. Once a species drops past a
critical number of individuals, the species will
most likely go extinct regardless of what we do
to intervene
6
Question

• True or False Environmental dangers are usually
  visible.

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There are many environmental problems that are
not always obvious. For example, UV radiation,
CFCs, microscopic organisms/viruses, and many
forms of pollution cannot be seen or detected
without special equipment. For this reason, an
individual may not be aware of the nature of the
problem.
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Prior Knowledge

• 1. What is biodiversity?
• What is the role of sexual reproduction
• in survival of organisms?
• 3. How do changes in the phenotype of an
  individual occur?

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• The Golden Coqui Extinction Dice Game

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?ENGAGE

• 99.9 of all species that have ever lived are
  extinct. Many of them perished in five mass
  extinctions. According to the America Museum of
  natural History and the Louis Harris Survey
  research firm, seven out of ten biologists
  believe we are in the mist of a sixth mass
  extinction

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?EXPLORE

• Get ready to play the Golden Coqui Extinction
  Dice Game. Lets read the directions together.

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?EXPLAIN

• Why are all the graphs not identical?
• 2. How do the three lines on the graph compare?
• Under what circumstance might an increased
  birthrate have a negative outcome?
• What are ways that citizens can become active in
  the protection of biodiversity?

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?EXPLAIN

• 5. What causes a population to grow?
• 6. What causes a population to decline?
• 7. What makes a population stay the same in
  size?
• 8. Does the size of the population matter? Why
  or why not?
• 9. Associate the probability of rolling the dice
  with the outcome of the simulation (i.e., what is
  the probability of rolling a 2,3,4,5,6,7,8,9,10,11
  ,12?

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?ELABORATE
Explore species no longer found in Texas using
information from the following website http//www
.texasep.org/html/wld/wld_3pna_ext.html
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?EVALUATE
After completing the learning experience, The
Golden Coqui Extinction Dice Game the learner
will participate in a class discussion by
providing at least two meaningful interactions
during the class debriefing sessions.
16
?EVALUATE
Given information about species which are longer
living in Texas, the student will conduct web
research to determine the cause of loss for at
least three animals. The information will be
recorded in the science journal.