Unit 9: Evolution
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Transcript of Unit 9: Evolution
Unit 9: EvolutionUnit 9: EvolutionLesson 1: Lesson 1:
An Introduction to Charles Darwin An Introduction to Charles Darwin and the Nature of Scienceand the Nature of Science
Evolution ProjectEvolution Project
• New randomized groups • 4th quarter grade: Daily class work/homework
collected in a final portfolio• Final Exam grade: Five “In Depth Investigations” – Graded according to a rubric/ average grade will be final
grade.
• Ends May 28th (We will not observe review days.)• Consequences of not fulfilling individual work
requirements.
““A scientist, however, gifted, can be A scientist, however, gifted, can be compared with a fly crawling on the inside compared with a fly crawling on the inside wall of a cathedral; if it could draw what it wall of a cathedral; if it could draw what it sees, the fly’s picture of the cathedral would sees, the fly’s picture of the cathedral would be as crude as early maps of the world; if it be as crude as early maps of the world; if it could voice its speculations about the size, could voice its speculations about the size, appearance, and purpose of the cathedral, the appearance, and purpose of the cathedral, the fly’s opinions would be received even more fly’s opinions would be received even more guardedly.”guardedly.”
-- Frederick Aicken, The Nature of Science , pp.29-30
Evolution As An IdeaEvolution As An Idea“ If I were to give an award for the single best idea anyone has ever
had, I’d give it to Darwin, ahead of Newton and Einstein and everyone else. In a single stroke, the idea of evolution by natural selection unifies the realm of life, meaning and purpose with the
realm of space and time, cause and effect, mechanism, and physical law. But it is not just a wonderful idea. It is a dangerous idea.”
Daniel Dennet
Evolution as an IdeaEvolution as an Idea“Evolution is one of the most powerful ideas ever to emerge from science. It is the very foundation of biology and the key to understanding our own human origins. The mechanism of evolution helps determine who lives, who dies, and who gets the opportunity to pass on traits to the next generation. At the same time, evolution ranks as one of the most widely misunderstood scientific principles in America today.”
Richard Hutton, Executive Producer, Evolution WGBHJody Patton, Executive in Charge, Clear Blue Sky
productions
Darwin’s Voyage of DiscoveryDarwin’s Voyage of Discovery
• Take the Pre-Test• Homework• Go to the following link:
http://www.pbs.org/wgbh/evolution/educators/lessons/lesson2/act1.html
• Complete the directions in Lesson 2 Activity 1. This will require you to…• Read the activity• Print the world map• Read the excerpts of Darwin’s
Voyage• Write a paragraph that answers the
question: Who was Charles Darwin?
Darwin and the GalapagosDarwin and the Galapagos
When your group finishes answering the questions for When your group finishes answering the questions for In Depth Investigation #1, discuss the following:In Depth Investigation #1, discuss the following:
1. How did the Galapagos Islands get there?2. How did the first plants get there?3. How did the first animals get there?4. What is ecological succession?
Galapagos IslandsGalapagos Islands
Galapagos IslandsGalapagos Islands
Ecological SuccessionEcological Succession
• process in which communities of plants and animal species in a particular area are replaced over time by a series of different and often more complex communities.
• Two stages– Primary succession– Secondary succession
Primary SuccessionPrimary Succession
succession in a bare area (no mature soil) that has never been occupied before
Secondary SuccessionSecondary Succession
succession in an area in which natural vegetation has been removed or destroyed but the soil remains
Ecological SuccessionEcological Succession