Download FOCUS (Label learning, involve all students, relate to

Form 4.1
Maryville College
Lesson Plan Example
Name
Lesson Title
Grade Level/Subject
Instructional Model
Craig Owens
Pedigree Charts
Biology 1
Direct Instruction
OBJECTIVE(S) (TN Curriculum Standards referenced)
3210.4.2 Complete and interpret problems that illustrate sex linkage, codominance,
incomplete dominance, multiple alleles, and polygenic inheritance.
3210.4.3 Apply data to complete and interpret a genetic Pedigree
SPI 3210.4.5 Apply pedigree data to interpret various modes of genetic inheritance
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Students will be able to explain the difference between Autosomal and Sexlinked traits
Students will be able to interpret Pedigree charts for autosomal and sex-linked
traits
Students will be able to apply their knowledge to pedigree world problems
Students will be able to defend their answers for the Pedigree chart
FOCUS (Label learning, involve all students, relate to real life, activate background
knowledge)
Bell Ringer:
 Students will write 3-5 short sentences on a polygenic trait in humans and how
they are environmentally influenced
 Teacher will go from table to table to check students answers
Label Learning:
 Teacher will give an overview of what today’s lesson will be on
 Teacher will explain the importance of Pedigree Charts
 Teacher will remind the students of Sex-linked traits leading into the Instruction
INSTRUCTION
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The teacher will pass out Guided Reading Notes to the students
The teacher will begin by reviewing sex-linked traits in humans
The teacher will use this review to assess whether the students have retained the
information from the previous lesson
The teacher will slowly transition into the significance of Autosomal traits and
Sex-linked traits
The teacher will explain that Sex-linked traits are most often seen in Males only
because of only having ONE X chromosome.
The teacher will explain that Sex-linked traits are not prevalent in females
because they have TWO X chromosomes.
The teacher will review to see if the students remember what Autosomal traits
are.
Teacher will give the two rules governing Dominant and Recessive traits in
autosomes
o Dominant: One parent will always express the trait
o Recessive: One or Both parents can express or not express the trait
The teacher will give an overview of the Purpose of Pedigree charts,
o Pedigree charts show a record of the family of an individual
o They can be used to study the transmission
o Useful when there is a large family spanning several generations
The teacher will explain the Symbols used in a Pedigree Chart
The teacher will give the Key Information on determining the difference between
Autosomal vs Sex-linked traits
o If most the males are affected then it is Sex-linked
o If it is 50/50 ratio it is autosomal trait
The teacher will begin the Story of a family and their generations using a
pedigree chart
Students will follow along with the teacher filling in the pedigree chart
CLOSURE (Verbalize/Assess objectives)
Students will use cooperative learning and work with a partner to
1.) Determine whether the Unknown Trait being passed is Autosomal or Sex-linked
trait
2.) Determine whether the trait is recessive or dominant
3.) Students must justify their answers by writing a few sentences.
The teacher will go from table to table to discuss the answers with the students.
Materials
Guided Notes
Blank Pedigree Chart
Rationale for Technology Use, if applicable
Prezi- Students enjoy prezi and their attention is kept more easily by using Prezi.