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Class: Biology ___________________________________________________________________ Lesson Topic: Phylogenetic Trees/Genetic Drift Class Period: Lesson Objectives: S:LS3:11:2.4 Explain evolution in terms of how the Earth’s present-day life forms evolved from earlier, distinctly different species as a consequence of the interactions of (1) the potential for a species to increase its numbers, (2) the genetic variability of offspring due to mutation and recombination of genes, (3) a finite supply of the resources required for life, and (4) the ensuing selection. S:SPS2:11:4.4 Describe how in evolutionary change, the present arises from the materials and forms of the past, more or less gradually, and in ways that can be explained. Prior Knowledge Assumed: the fossil record is used to establish relationships between past and present forms of organisms. Materials: Phylogeny of Calminalcules Evaluation Phylogeny of Calminalcules trees and questions Intelligences Addressed: Linguistic, Logical/ Mathematical, Spatial, Musical, Bodily/Kinesthetic, Interpersonal, Intrapersonal Pyramid Agenda What some students will learn: What most students will learn: What all students should learn: Review vocabulary as a class – vocab cards, ask random students (10 minutes) Students will finish Phylogenetic Tree of Calminalcules with their partner. They must be finished with their tree, questions can be done as homework (60 – 90 minutes; gauge where all students are at). If students finish – give them time to work on independent, out of class project until entire class is finished. If all students finish trees – short lecture on cladograms and shared derived characteristics (10-20 minutes) Vocabulary Natural Selection Cladogram Fossils Clade Phylogeny Shared Derived Characteristics Pyramid of Knowledge What some students will learn: Transitional organisms are those that exhibits traits common to both an ancestral group and its descendents. Fossils allow scientists to classify organisms on an evolutionary tree based on morphological characteristics What all students should learn: What most students will learn: A phylogenetic tree helps trace back the lineage of an organism over millions of years.