Dichotomous Key Teacher Resources
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Use of Dichotomous Keys to Identify Stream Organisms
What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of Stream...
8th - 12th
Determining Stream Health by the Diversity and Types of Benthic Organisms
How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local streams....
8th - 12th
Impacts of Climate on Forest Succession
New ReviewPart two in a series of four explores the effects of climate on succession or the changing of plant species in a forest. Groups review how to identify trees and then spend a day in the field collecting extensive data on trees to...
10th - 12th CCSS: Adaptable
"Finding Your Sweet Tooth"--An Introduction to the Dichotomous Key
Sixth graders classify candy according to observable characteristics. They use a dichotomous key to identify their bag of "treats." Thus, describe how dichotomous keys help to the identifying of organisms. Design a self-generated...
Regents High School Examination: Living Environment 2010
This exam touches upon every topic within the typical first year biology course.. A broad variety of question styles give high schoolers every opportunity to show what they know. Why start from scratch when a comprehensive final exam is...
9th - 12th
Dichotomous Keys: Identification Achievement Unlocked
Do you know the difference between a mountain lion, puma, cougar, and Texas panther? They are all the same animal but have different names in different areas of the world, which is why we use scientific names for plants and animals. The...
7 mins 7th - 12th