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• 6-8.RH.2 (7)
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• 11-12.RH.2 (3)
• 4.RI.4 (3)
• 4.SL.1 (3)
• 5.SL.6 (3)
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• 6-8.RST.1 (3)
• 6-8.WHST.1 (3)
• 6-8.WHST.2 (3)
• 6-8.WHST.9 (3)
• 8.SL.1 (3)
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• 9-10.RH.2 (3)
• 9-10.RH.3 (3)
• 9-10.RH.5 (3)
• 9-10.RH.7 (3)
• 11-12.RH.10 (2)
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• 11-12.RH.6 (2)
• 11-12.RH.8 (2)
• 11-12.RH.9 (2)
• 4.L.1 (2)
• 4.RF.4 (2)
• 4.RI.1 (2)
• 4.RI.7 (2)
• 4.SL.1.c (2)
• 4.SL.1.d (2)
• 4.SL.3 (2)
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• 4.SL.6 (2)
• 4.W.2 (2)
• 4.W.8 (2)
• 5.RF.4 (2)
• 5.SL.5 (2)
• 6-8.RST.4 (2)
• 6-8.RST.6 (2)
• 6-8.RST.8 (2)
• 6-8.RST.9 (2)
• 6-8.WHST.10 (2)
• 6-8.WHST.6 (2)
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• 6.SL.6 (2)
• 7.SL.1 (2)
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• 7.SL.6 (2)
• 7.W.1 (2)
• 7.W.10 (2)
• 7.W.2 (2)
• 7.W.9 (2)
• 8.RI.8 (2)
• 8.SL.5 (2)
• 8.SL.6 (2)
• 1.L.2.a (1)
• 1.L.4.a (1)
• 1.RL.1 (1)
• 1.RL.2 (1)
• 1.RL.3 (1)
• 1.RL.4 (1)
• 1.RL.6 (1)
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• 1.SL.1 (1)
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• 11-12.RH.3 (1)
• 11-12.RH.5 (1)
• 11-12.RH.7 (1)
• 11-12.RI.10 (1)
• 11-12.RI.2 (1)
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• 11-12.RL.4 (1)
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• 11-12.WHST.2 (1)
• 2.L.2.a (1)
• 2.L.4 (1)
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• 2.RL.1 (1)
• 2.RL.2 (1)
• 2.RL.3 (1)
• 2.RL.5 (1)
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• 8.W.2 (1)
• 8.W.7 (1)
• 8.W.8 (1)
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• 8.W.9.b (1)
• 9-10.RI.1 (1)
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• 9-10.RL.4 (1)
• 9-10.RST.1 (1)
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Showing 71 results for dichotomous key ...

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Using Dichotomous Keys

• Type: Lesson Plan
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

A dichotomous key is an important scientific tool, used to identify different organisms, based the organism’s observable traits. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.

Olympic National Park

The Key to the Tree

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Students will connect their neighborhood or outdoor space to the National Parks by identifying specific types of trees.

Roger Williams National Memorial

A Key Into the Language Of America

• Type: Lesson Plan
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

This lesson plan introduces students to "A Key into the Language of America" and provides a glimpse into the complex relationship Williams had with the Narragansett and gives a first-hand account of 17th-century native culture. By the end of the lesson, students will be able to answer the question: How did Roger Williams’ A Key into the Language of America foster understanding of daily life, work, and relationships between the Native Americans and colonists?

Glacier National Park

Know Your Trees

• Type: Lesson Plan
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

In this activity, students will review the parts of a tree and use dichotomous keys to practice identifying tree species that live in Glacier National Park.

Guadalupe Mountains National Park

Geology Lesson 1. The present is the key to the past.

• Type: Lesson Plan
• Grade Levels: High School: Ninth Grade through Twelfth Grade

During the Permian period a sea covered the area and a reef started to form in this marine environment. The actual fossils you can find hiking the Permian trail at Guadalupe are remnants of this ancient feature. This lesson will help high school students to infer what happened in the area using important geological tools like rocks, fossils and satellite images.

Keys Ranch: Where Time Stood Still

• Type: Lesson Plan
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

The lesson could be used in U.S. history, social studies, and geography courses in units on western expansion and settlement, or desert environments. It also could be used in an American Literature course in a unit on the writings of Ralph Waldo Emerson, particularly his concept of self-reliance. The lesson will help students understand why desert regions were among the last areas settled under the Homestead Act and how settlers in these places survived in a remote environment.

Harpers Ferry National Historical Park

The Battle of Harpers Ferry, 1862: Harpers Ferry is the Key!

• Type: Teacher Reference Materials
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

When war broke out in April 1861, Harpers Ferry was still producing weapons for the U.S. Government, but that spring, the Confederates dismantled both weapons’ factories and sent the machines south. Teachers will find three resources for use in the classroom: a drawing of a Civil War soldier, list of items soldiers carried or wore, and a map of Northern Virginia and part of Maryland.

Everglades National Park

"Algae: It Feeds, Kills and Dies" Plant Activities: 4-6th Grade

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Our "Plant" unit is broken into six lesson plans, each taking from 20 minutes to several class periods to complete, and targeted mainly at 4th-6th grade students. A class needn't complete every lesson in the unit, though some lessons do refer to one another and are better done in sequence. However, each lesson comes with its own set of objectives and resources.

Fort McHenry National Monument and Historic Shrine

“The Rockets’ Red Glare”: Francis Scott Key and the Bombardment of Fort McHenry

• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Few people remember the War of 1812 today, but the poem it inspired, almost immediately set to music as "The Star Spangled Banner," has become the national anthem of the United States and a potent source of inspiration and community for Americans in times of crisis.

Glacier National Park

Always Changing

• Type: Lesson Plan
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

Working in three teams, students will use reference material to create and present a play showing 100 years of change for each forest type.

Cuyahoga Valley National Park

Biological Indicators

• Type: Lesson Plan
• Grade Levels: High School: Ninth Grade through Twelfth Grade

Macroinvertebrates can be found in bodies of water buried in sediments and detritus or attached to rocks or plants. They are visible without magnification and can be used by scientists to measure water quality. In this lesson, introduce your students to these organisms and to the use of a dichotomous key. Students will hone basic identification skills to increase the reliability of data they may collect during a visit to Cuyahoga Valley National Park.

“The Rockets’ Red Glare”: Francis Scott Key and the Bombardment of Fort McHenry (Teaching with Historic Places)

• Type: Lesson Plan
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

Learn about Fort McHenry during the War of 1812.

Haleakalā National Park

ʻĀhinahina Haleakalā

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Eia ihola ke kiʻi o nā ʻĀhinahina ma Haleakalā. Akāka ke kiʻi o ka ʻĀhinahina mākua.

Florissant Fossil Beds National Monument

So You Wanna Be a Paleobotanist?

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Students will re-create scientific studies done by paleobotanists analyzing data from fossil plants found at Florissant Fossil Beds to draw conclusions about the paleoclimate 34 million years ago. In this activity, students will identify fossil plant species by their leaves, review data on the growing conditions of their nearest modern plant relatives, and compare as many species as possible to determine the range of temperature and precipitation that the fossil plant community can live in.

Tule Springs Fossil Beds National Monument

National Parks in the History of Science: Radiocarbon Dating Video Notetaker

• Type: Student Activities
• Grade Levels: High School: Ninth Grade through Twelfth Grade

Students will identify key information about the history and use of radiocarbon dating.

Brown v. Board of Education National Historical Park

Lights, Camera, Action Lesson Plan

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Who were the key figures in the Brown v. Board of Education court case? How did they contribute to desegregation?

Timucuan Ecological & Historic Preserve

Kingsley Timeline

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

This timeline activity guides students through the story of the Kingsley family while highlighting key moments in Florida's history.

Tule Springs Fossil Beds National Monument

Ice Age Mammals of Tule Springs Research Project

• Type: Student Activities
• Grade Levels: High School: Ninth Grade through Twelfth Grade

Students will identify key information about a past species. Students will describe modern relatives of a species found in the fossil record.

Glacier National Park

Visual Vocabulary

• Type: Lesson Plan
• Grade Levels: Upper Elementary: Third Grade through Fifth Grade

Students use pantomiming to learn, interpret and identify key ecological concepts like 'ecosystems' and 'food web' in this interactive lesson plan.

Palo Alto Battlefield National Historical Park

Historical Characters

• Type: Student Activities
• Grade Levels: Middle School: Sixth Grade through Eighth Grade

In this activity, students will learn about nine key participants in the Battles of Palo Alto and Resaca de la Palma and the Siege of Fort Brown. They will discover how the personalities of these key leaders helped them during these clashes and influenced their outcome. Students them compare their own personality traits to discover how they are like or different from these leaders.