Dichotomous Key 11.15 & 11.18

​November 16th, 2022

• ​Essential Question: How are dichotomous keys used to identify organisms?

• ​We Will: Identify Dichotomous Keys and how to organize species.

• ​I will: Create my own dichotomous key with my group.

​Today's Vocabulary

• ​Dichotomous Key

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​TEK 7.11(A): Examine organisms or their structures such as insects or leaves and use dichotomous keys for identification.

Think-Pair-Share

Discuss with your table about how you would "group" different organisms such as those on the right.

Examples with cats and dogs:

I would group cats and dogs together because they both have fur.

I would group cats and dogs separately because cats purr and meow; while dogs bark and growl.

Open Ended

Looking at the image, how would you group/categorize some of the species? You may discuss with your group.

​Dichotomous Key Guided Reading

• Go to Schoology

• ​Read the Dichotomous Key Reading

• ​Pick 4 species and follow the Dichotomous Key.

• ​Write your species name for credit.

​Exit Ticket Questions:

• Tell me the steps of how to do a Dichotomous Key