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Chapter Two
TAKS Objective 2 –
The student will
demonstrate an
understanding of living
systems and the
environment.
Feedback Systems
• Students will use multimedia segments to
learn about how feedback systems
regulate the body.
• Students will perform a skit about glucose.
You can’t have one without
the other.
There are twelve major organ systems in
the human body (i.e., circulatory, skeletal,
respiratory, excretory, integumentary,
nervous, digestive, endocrine,
reproductive, immune, lymphatic, and
muscular systems). In this TEKS, we will
introduce the most common interactions in
the human body by relating them to the
nervous and/or circulatory system.
I’m depending on you
In the lesson the student uses plastic soda
bottles to build an ecocolumn which will be
used to study biotic and abiotic interactions
in terrestrial and acquatic systems (e.g.,
food chains, food webs, competition,
chemical and nutrient cycling). The
ecocolumn structure will be used to further
understandings about how salt, fertilizer, and
acid rain upset the balance of ecosystems
(TEKS 8.14 C).
Objective - The student will
describe in the science journal
at least seven environmental
conditions that can have
significant impact on the
survival of individuals and
species.
ENGAGE
Don’t Leap to Conclusions: The
Case of the Malformed Frogs
• Use the jigsawing teaching strategy where
each group of students become experts on
a particular topic.
• After groups of students read the articles
and answer the appropriate questions,
allow then to share their information.
Who’s da mama?
Lesson Objectives
• Students will apply their understanding of
probability by making predictions.
• Students will be able to complete
monohybrid cross problems.
• Students will apply their knowledge of
Punnett squares to real-world situations.
• Students will communicate information
about genetic disorders by creating a
brochure for publication.
Dragon Genetics
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