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82 resources with the concept dichotomous keys

Lesson Planet

Determining Stream Health by the Diversity and Types of Benthic Organisms

For Teachers 8th - 12th Standards
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....
Lesson Planet

Name that metal!

For Students 5th
Learners have to have had some experience with metals prior to using this worksheet. They are given five properties common to five different metals. They create or use a dichotomous key to identify the five mystery metals. Tip: This...
Lesson Planet

Name that plant!

For Students 5th
What is a dichotomous key? When your kids ask, hand them a learning exercise like this one, to explain it. They use the key to identify four different trees, based on the budding twigs they've produced. Tip: Have learners extend this...
Lesson Planet

What's My Rule

For Teachers 2nd - 3rd
Young scholars categorize various types of produce. In this categorization lesson, students explore various ways to categorize items. Young scholars deduce what rules other students used to categorize their produce.
Lesson Planet

St. Lawrence River Organisms and Environment

For Teachers 7th - 8th
Two films are suggested as initiating activities, but you would have to locate them. Nevertheless, there is plenty of material here to provide your biology or ecology classes with a complete mini-unit on freshwater fish species in the...
Lesson Planet

Species Identification Using Dichotomous Keys

For Teachers 4th - 8th
To help your students unlock the wonderful world of living things, teach them to use a dichotomous key.
Lesson Planet

Classification of Cerealites

For Teachers 6th - 8th
Students create a dichotomous key. In this categorizing lesson, students create a dichotomous key for different types of cereal. Students classify the cereal into groups such as flakes and cereal with holes. Students discuss their...
Lesson Planet

Potato chip Classification

For Teachers 5th - 8th
Students create a dichotomous key using potato chips. In this classification lesson, students sort potato chips into groups based on observable characteristics. They record their results to create a dichotomous key in preparation for...
Lesson Planet

Constructing a Dichotomous Key

For Teachers 8th - 10th
Students construct a dichotomous key using 10 shoes from students in the classroom. For this dichotomous key lesson plan, students use the chalk board and their pile of 10 shoes to create a dichotomous key. They divide the shoes into 2...
Lesson Planet

Creating a Dichotomous Key for Amphibians

For Teachers 9th - Higher Ed
Students are introduced to the purpose of dichotomous keys and create one together as a class. In groups, they use a digital atlas to examine the different types of amphibians in Idaho. Using this information, they make their own...
Lesson Planet

Mollusk Matching

For Teachers 3rd - 5th
Learners look carefully at shells and observe the differences between species and the names of common shells. Then they identify and complete a Mollusk Matching handout included in the lesson plan and write the letter of each shell in...
Lesson Planet

Dichotomous Keys

For Teachers 7th - 8th
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...
Lesson Planet

What's That Tree?

For Teachers 5th
Fifth graders identify trees along a nature trail. Using a dichotomous key, 5th graders answer questions to aid in their identification of trees along a specified nature trail. Observations are recorded in their science journals. Sample...
Lesson Planet

Classification, Keys, and Phylogenetci Trees

For Teachers 7th - 8th
Students analyze relationships about animals and create a model of classifications based on both the similarities and the differences. They also discuss a dichotomous key before they create a cladograph using different types of candy.
Lesson Planet

Categories and Dichotomous Keys

For Teachers 4th - 5th
Students examine how scientists organize and sort animals into categories, and use a dichotomous key to distinguish between objects. In small groups they sort pictures of animals into groups and discuss their categorizing process. ...
Lesson Planet

Insect Pitfall Traps

For Teachers 7th - 8th
Students ask testable questions, use the inquiry cycle to investigate, gather data and interpret the results, study the diversity of insects and other smallorganisms which live around the school; they can make an inventory /collection of...
Lesson Planet

Dichotomous Key

For Teachers 6th - 8th
Young scholars draw comparisons between organisms. They classify organisms. Students are introduced to dichotomous keys and how to create and use a dichotomous key to identify a variety of objects. They begin by defining classification,...
Lesson Planet

Mammal Teeth and Skulls-Adaptations and Identification

For Teachers 6th - 8th
Student study the differentiation of teeth and skull adaptations in mammals in general and 14 common terrestrial mammals. They explore more about these mammals, their natural history, their adaptations and their identification through an...
Lesson Planet

Introducing the Use of Dichotomous Keys to Students

For Teachers 6th - 8th
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...
Lesson Planet

Discovering Dichotomous Keys

For Teachers 9th - 12th
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...
Lesson Planet

Dichotomous Key 2

For Teachers 5th - 8th
Students use a dichotomous key to identify unknown fictitious organisms in an assessment designed to be used after a discussion on the use of a dichotomous keys has occurred. Follow up questions about key included.
Lesson Planet

Collecting and Classifying Pollen

For Teachers 9th - 12th
Students collect and analyze pollen from different species of plants. In small groups, they classify pollen according to shape, size and physical characteristics. They draw the basic anatomy of flowering plants and create a dichotomous...
Lesson Planet

Fish Identification

For Teachers 4th - 8th Standards
Using a dichotomous key, pupils identify characteristics of fish who live in the Great Lakes and explain how these features help them survive. In small groups, class members discover what features scientists consider important and...
Lesson Planet

In a Class of Their Own

For Teachers 6th - 12th
Learners explore taxonomy and how birds are classified in this scientific system. They use this knowledge to create entries for a field guide to birds that can be used to identify different species.