Curated OER
Exploring Triangles
Students research the different types of triangles, including right, isosceles, scalene, and equilateral triangles. They identify the characteristics of various types of triangles and then draw them using appropriate vocabulary to...
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Triangles
Students discover the difference between triangles. In this triangle lesson plan, students discuss the different types of triangles, then draw the three different types of triangles. The teacher will draw, or model, how to draw the...
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Identify triangles
Students explore triangles. In this geometry lesson plan, students will create note cards with pictorial depictions of right, acute,obtuse, scalene, isosceles, equilateral and equiangular triangles. Students will verbally describe each...
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Shape Up
Students explore differents types of triangles and quadriaterals. In this polygon instructional activity, students model identify and compare two and three dimensional geometric figures. Students create tangrams and discover the...
Improving Measurement and Geometry in Elementary Schools
The Sum of the Interior Angles of a Polygon
Junior geometers discover that polygons can be decomposed into triangles and that the number of triangles can be determined by a rule. Note that the Geometer’s Sketchpad® software is required to carry out all components of this...
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Triangles Introduction
Students explore geometry by drawing various shapes in class. In this triangle characteristics lesson, students identify the attributes that classify a shape as a triangle and practice using their bodies to create triangles in class....
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The Odyssey - By Homer
Students read and interpret the epic poem The Odyssey by Homer. They interlock this poem to other spectacular people or events such as Amelia Earhart and the Bermuda Triangle. A vast array of excellent assignments are given within this...
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Understanding the Epidemiologic Triangle through Infectious Disease
Learners examine the epidemiologic triangle. In this disease instructional activity, students discuss infectious disease as they study how they spread and discover their families' experiences with them. Learners research Internet sites...
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Polygon Mobiles
Students explore a variety of shapes and angles and create mobiles with information about a selected polygon. Both common and "not-so common" polygons are examined.
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Pythagorean Theorem
Students identify a right angle and right triangle. They perform WebQuests searching for similar figures and solve for the length of one of the sides given the other two.
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Line, Shape, and Texture
High schoolers are introduced to various types of artwork by various artists. In groups, they identify the lines and shapes used by the artist to create a specific texture. They write a paper of their observations and discuss them as a...
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Problem Solving Using Power Polygons
Students investigate geometric shapes by creating figures on a plane. In this polygon lesson, students complete a worksheet based on the angles in a power polygon. Students identify the different types of polygons and define their...
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Underwater Research
Students make transect and quadrat surveys using a provided worksheet in order to understand the techniques used to study coral reefs. Each type of survey is used to identify the species, diversity, and number of corals.
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Stabilization Wedges Game
Teamwork and critical thinking combine to for a creative lesson on reducing greenhouse gas emissions. Ebullient environmental studies learners play a game in which they strategize how to place colorful energy wedges together to create a...
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Triangle Sensory Test with Oreo Cookies Lesson Plan
Students voluntarily participate in a sensory test and examine hypothesis testing and statistical significance. They use low-fat and original Oero cookies for this experiment.
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Exploring Special Segments in Triangles
Students discover that four special segments have a common intersection point. They identify the position of the intersection point in triangles. They produce conjectures about areas of the divided triangles.
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Branches of Government Graphic
Students explore the three branches of government. They create a graphic diagram to show each branch of government. Students include the qualifications for service and duties of each branch of government in their graphic diagram.
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Four Color Map
Students explore geometry by completing a color puzzle. In this shape identification instructional activity, students utilize deductive reasoning to complete a Google SketchUp puzzle with trapezoid, triangles and rectangular shapes....
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Story Mapping A Favorite Book
First graders create a diagram of a story by using the computer program Kidspiration. In this diagramming lesson plan, 1st graders will pick a book to write about. They then will plug in story elements of the book into the computer...
Centers for Disease Control and Prevention
Being the “Host” at This Party is No Fun
Discuss the symptoms and variations from infectious diseases from one person to the next. After a class discussion, small groups complete research on the topic.
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Hands on Essays
Third graders relate the concept of individuality of geometric shapes to the individuality of topic sentences. They write and revise a persuasive argument essay using an established rubric.
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Surface Area with Polydrons
Students explore measurements by analyzing geometric shapes. In this surface area lesson, students identify the terms volume, weight, perimeter and area in order to find the requested measurements of specific polygons. Students utilize...
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Geometry: Lesson 6: Shapes
Fourth graders design a figure using the given geometric shapes from a set of tangrams. They manipulate common shapes to analyze and make new figures. They complete a worksheet associated with the lesson.
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Geometry and Quilting
Fourth graders combine geometry and language arts skills while examining quilt-making. After identifying the geometric shapes contained in quilts, they write stories to encompass the quilt border. Students conclude by creating and...
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