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Reflection
Students examine how some transformations, such as reflections and rotations, do not change the figure itself, only its position or orientation.
Curated OER
Reflection
Eighth graders use a stencil to make a figure with which they discover the horizontal line of reflection, the vertical line of reflection, and the diagaonal line of reflection using coordinates.
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Can You Identify Arthropods?
Third graders sort and classify the four Arthropod classes. They are given puzzle pieces of one Arthropod example. Each group is to put their puzzle together, glue it on a piece of construction paper and label the ir puzzle.
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Constructions of Isosceles and Equilateral Triangles
Pupils explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has to...
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Making Topographic Maps and Mountain Profiles
Students study how to mark inclines and construct a mountain profile. In this topographic map lesson students mark contour intervals and draw mountain profiles.
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Innovations In Adult Care
Students study scientists and the important Nobel Prize dates. In this investigative lesson students divide into groups and watch a program then complete a project.
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Math and Circumference
Sixth graders explore geometry by utilizing mathematical formulas. In this circumference lesson, 6th graders identify the difference between diameter, circumference and radius in a circle. Students review the formulas for finding...
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Area of irregular Polygons: Historical Motivator - Lewis and Clark Adventure
Seventh graders find the area of irregular polygons. In this lesson on calculating area, 7th graders use the adventures of Lewis and Clark as motivation to learn how to calculate the area of irregular polygons.
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Geometric Probablitiy: Spinners and Dartboards
Slearners explore and analyze the properties of geometric areas. In this geometry lesson, sstudents use technology to simulate spinners and dartboards in order to fing areas of circles and sectors of circles and compare and...
National Council of Teachers of Mathematics
Perplexing Parallelograms
In this geometry worksheet, young mathematicians divide a parallelogram into four, by choosing points along a diagonal. Students calculate the area of each parallelogram and look for any patterns that may emerge. The one-page...
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Trapezoids
In this trapezoids worksheet, 10th graders solve 5 different problems related to trapezoids and applying the appropriate theorem. First, they define a trapezoid, including its bases, legs, and base angles. Then, students use the...
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Arcs and Chords Multiple Choice
In this geometry learning exercise, students answer questions about triangles using the correct properties. They find missing angles and sides of triangles. There are 15 questions with an answer key.
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Area Of Sectors
Student find the area of a sector of a circle. In this geometry lesson, students define the sector of a circle using a sketch. They find and identify examples of sector in the real world.
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The Gold Rush
Students identify the routes involved in the Gold Rush on a map. In this map skills lesson, students use a United States map to locate the routes used to travel to California during the Gold Rush. Students demonstrate how to use the map...
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Globe Skills Lesson 7 The Transcontinental Railroad
Students explore the Transcontinental Railroad. In this geography skills lesson, students use map skills in order to locate legs of the Transcontinental Railroad on globes.
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Tessellations
Students create tessellations. In this geometry instructional activity, students use polygons to create different patterns by rotation. They identify the reasons for polygons to create the type of tessellation it does.
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Finding the Area of a Parallelogram with Translations
Students calculate the area of a parallelogram. In this geometry lesson, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
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Finding the Area of a Parallelogram with Translations
Students calculate the area of parallelograms. In this geometry lesson, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.
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Combining Words with Art
Third graders make an accordion-fold book, review the vocabulary of visual art and are introduced to calligraphy. They plan a story using a sequence of words and sentences.
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Conserving Energy Resources
Seventh graders research on energy conversion. After they have researched several types of energy resources, teams of two to four create posters which depict how these resources can be conserved.
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Classifying and Constructing Corners
Fifth graders, after seeing Honeycomb examples, complete a Classifying Angles worksheet, Clock worksheet, and Defining Angles worksheet.
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Flight 2
Students are introduced to two of the four principles of flight: drag and thrust. As the class watches a video on these principles, they utilize ballons, straws and clothepins to simulate what they're seeing in the show. Nice, hands-on...
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Universal Proportions: Earth and Moon
Students create scale models of Earth, the Moon, and the distances within the universe. Working in groups, they construct their models of Earth and the Moon on a scale of 50:1 and calculate how far apart to place their models. They...
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The Proof
Students will construct simple curves on graph paper by connecting a series of points between the vertical and horizontal axes. They share their designs and explain the patterns.