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- Grade Range
- 9th - 12th
- Rating
Students analyze how a dichotomous key helps us explain and identify unknown organisms. They design and construct a dichotomous key, developing a list of three observable characteristics per organism. Full Review »
- Grade Range
- 1st - 4th
- Rating
Students use a dichotomous key to distinguish between different types of clouds Full Review »
- Grade Range
- 11th
- Rating
Students use a dichotomous key and observation skills to classify a variety of trees. They research leaf types and how trees are classified, develop sketch and identification notebooks and record a number of identified trees. Full Review »
- Grade Range
- 1st - 4th
- Rating
Students conduct observations and use a dichotomous key to identify clouds they see. Full Review »
- Grade Range
- 7th - 12th
- Rating
Students discover the benefits of using a dichotomous key to identify and classify organisms and objects. They design a dichotomous key for identifying sea shells using oyster shells or images. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students are introduced to the use of dichotomous keys as a simple means of beginning scientific observations in nature. They comprehend how to use a dichotomous key. Students distinguish characteristics of a group of organisms. They comprehend of the candy key to identifying plants. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students become familiar with the structure and use of dichotomus keys. They demonstrate a comprehension of the fundamental principles of taxonomy by classifying organisms from a local ecosystem. Students are introduced to the term dichotomus key, and they are explained how dichotomous keys are structed and what they are used for. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students are examine the purpose of dichotomous keys. In groups, they design their own in order to describe the characteristics of plants and weeds native to California. To end the lesson, they define new terminology associated with the dichotomous key. Full Review »
- Grade Range
- 7th - 8th
- Rating
Students define the word dichotomous and explain why a dichotomous key is a useful tool in identifying different species. Then they look up words they are unfamiliar with or mollusk reference books so students can learn the names of mollusk parts, which help them through the key. Students also try to figure out what shell they have been given and exchange shells with other students to practice using their dichotomous key. Full Review »
- Grade Range
- 9th - Higher Ed
- Rating
Students are shown how to use the butterfly section of the Digital Altals of Idaho. They discuss how to make a dichotomous key. Students use their skills of observation and recognize defining characteristics that distinguish different families. Full Review »
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