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Curated OER
Branding Circles, Squares, Rectangles, Triangles
Compare and classify 2-D shapes! Kindergarteners inspect the attributes of plane shapes and examine shapes in everyday life. They label the circles, squares, rectangles, and triangles they find. This is the website where you can find the...
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Shapes and Angles
Are your geometry whizzes learning about angles and shapes? This online worksheet gives 10 multiple choice questions based on images and word problems. Concepts include deducting angle degree, classifying shapes, and identifying angle...
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Building Big and Strong
Middle and high schoolers explore the concepts of architectural rigidity. They analyze a variety of polygons, and explain why some shapes add more strength to structures than others. The PBS video, "Building Big," is utilized in this plan.
Skyscraper Museum
What is a Skyscraper?
Skyscrapers are amazing feats of architectural design that create the iconic skylines of the world's biggest cities. Young architects explore the defining characteristics of these monstrous towers with the first lesson in this four-part...
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The Strongest Shape
Students work collaboratively to design and construct a roof out of Legos for a house that was built in a previous lesson. The roof must be structurally sound and pass certain criteria determined by the teacher.
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Classifying Quadrilaterals
Fourth graders select the Quadrilateral Quest game, they find all quadrilaterals with the given properties. They are told that the word congruent in this game means equal. Students are given two to four properties of quadrilaterals. ...
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What are the Kinds of Triangles?
Fifth graders classify triangles. In this triangle lesson, 5th graders learn about the characteristics that make up a triangle. They are instructed through video, PowerPoint slides, and teacher-led demonstrations.
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Natural Figures
First graders look for geometrical shapes in nature to help them appreciate the diversity of the natural environment.
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Surface Area and Volume
Middle schoolers are introduced to the notion of surface area and volume. Students review surface area and volume by finding the area of a two-dimensional shape. They practice using the computer to create different surface area shapes.
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Will it SINK or Float?
Students predict whether objects will sink or float in water. They classify objects as sinking or floating in water. Students identify and explain similarities between objects that sink and float.
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Why We Communicate
Students identify the three common reasons for communication: information, persuasion, and entertainment. They create media messages for different purposes and develop a purpose of message shapes and how it helps shape the message.
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The Unit Circle
Students relate the trigonometric functions to the coordinates of the unit circle. They classify trigonometric functions as odd or even. Students determine the signs of trigonometric functions in each quadrant. They are explained that...
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SuperShapes, Part 1; "Tri"ing Triangles
An outstanding lesson plan on triangles awaits your math scholars. Learners focus on the triangle, which is the strongest of all polygons. They see the role that triangles play in the design of buildings, and learn about triangle...
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Feature column: Hands on Math With Technology
Young learners will view a math adventures video and practice math concepts. Afterwards they will navigate through Internet sites to participate in teacher selected math adventures. This guide walks you through integrating...
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"Geotown" Scrapbook
Students create a scrapbook. In this geometry lesson, students use digital cameras to take pictures of geometrical concepts. Students use the pictures to create a "Geotown" scrapbook.
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Blindfolded Building
Pupils build a Lego design and then work with a partner to reproduce that design. They guide the building of the reproduction by description only and then check their work.
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Google Earth Scavenger Hunt
Students complete activities to learn how to use Google Earth and study Alaska. In this Google Earth instructional activity, students complete a Google Earth scavenger hunt to find facts about Alaska. Students complete two worksheets for...