Thursday – April 2, 2009 Catalyst:  Classify this organism using a dichotomous key. 1a. Wings covered by an exoskeleton… go to step 2 1b. Wings not covered.

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Presentation transcript:

Thursday – April 2, 2009 Catalyst:  Classify this organism using a dichotomous key. 1a. Wings covered by an exoskeleton… go to step 2 1b. Wings not covered by an exoskeleton … go to step 3 2a. Body has a round shape… h. convergens 2b. Body has an elongated shape… m. sanguinpes 3a. Wings point out from the side of the body… a. imperator 3b. Wings point to the back of the body… m. domestica 1a. Wings covered by an exoskeleton… go to step 2 1b. Wings not covered by an exoskeleton … go to step 3 2a. Body has a round shape… h. convergens 2b. Body has an elongated shape… m. sanguinpes 3a. Wings point out from the side of the body… a. imperator 3b. Wings point to the back of the body… m. domestica

Remember…  Follow the dichotomous key, starting at 1  Each step gives you two opposite choices  Identify the true choice  Follow the directions given  NEVER just look through the answer choices on the key  Yes, you already know what a ladybug looks like…  …But do you know the difference between Panthera onca and Panthera pardus?

Guided Practice  Worksheet! Love them worksheets!

Independent Practice  Make your own dichotomous key  Must have AT LEAST seven steps (1a/1b = 1 step)  Must classify AT LEAST five different objects  Remember…  Start at 1  Ask only true/false questions  There can only be one correct answer for each object you put into it!

Thursday – April 2, 2009 Exit Question:  Classify this organism using a dichotomous key. 1a. Wings covered by an exoskeleton… go to step 2 1b. Wings not covered by an exoskeleton … go to step 3 2a. Body has a round shape… h. convergens 2b. Body has an elongated shape… m. sanguinpes 3a. Wings point out from the side of the body… a. imperator 3b. Wings point to the back of the body… m. domestica 1a. Wings covered by an exoskeleton… go to step 2 1b. Wings not covered by an exoskeleton … go to step 3 2a. Body has a round shape… h. convergens 2b. Body has an elongated shape… m. sanguinpes 3a. Wings point out from the side of the body… a. imperator 3b. Wings point to the back of the body… m. domestica

Quiz  Good luck!!!