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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 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 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.