Curated OER
Getting It Right!
Students construct right triangles, measuring the sides and recording the measurements in spreadsheets. They analyze their measurements for patterns and research the Internet for information on Pythagoras.
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Identify triangles
Learners explore triangles. In this geometry lesson, students will create note cards with pictorial depictions of right, acute,obtuse, scalene, isosceles, equilateral and equiangular triangles. Learners will verbally describe each type...
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Exploring Geometric Figures
Tenth graders explore mathematics by participating in hands-on daily activities. Learners identify a list of different shapes and classify them by shape, size, sides and vertices. They utilize tangrams and geometric pieces to gain an...
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Shape Up
Students explore differents types of triangles and quadriaterals. For this polygon lesson, students model identify and compare two and three dimensional geometric figures. Students create tangrams and discover the difference between...
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Folding Shapes; Are the Sides the Same?
Second graders explore geometry by experimenting with fold-ables. In this geometric shapes lesson, 2nd graders utilize cutout shapes from construction paper which they experiment with by folding. Students examine the symmetry and...
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Fibonacci Numbers
Learners calculate the Fibonacci sequence of numbers. Through the use of Fibonacci numbers in flowers, leaves, fruits, vegetables, pine cones, and other forms of nature; students explore how Fibonacci numbers occur in nature. Then they...
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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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Scaling Down the Pyramids
Students construct three-dimensional models of the three pyramids at Giza. They research the building of the pyramids and record the height, base and angle measurements of each pyramid. They create a file of facts regarding the pyramids.
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Geometry Everywhere; Fractal, Math & Form
Students explore fractal geometry. They do online explorations of fractals to discover applications of fractal geometry for a report.
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Twenty Green Gates
Second graders explore mathematics by participating in a pattern building activity. For this geometric construction lesson, 2nd graders discuss a story problem in which a gate needs to be built from triangles and trapezoids up to a...
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Scarcity and Choice
Students participate in a role play as producers of two goods, allowing students to experience scarcity. They make choices about using their scarce resource to produce both or one of two goods. Then they construct...
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The Anti-Gravity Machine
Students examine physics by completing a bicycle experiment in class. In this gravity lesson, students measure the characteristics of different bicycles and compare their different race times. Students utilize a shoebox, pencil, tape,...
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A Honey of a Hexagon
Students explore how bees make honey and why the hexagon is the best basic pattern for the honeycomb through the use of a video and hands-on activities with honeycombs and geometric shapes.
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Exploring Tessellations
Fifth graders examine how to make tessellations. In this tessellation instructional activity, 5th graders review the meaning of the word "polygon" while the teacher shows them various examples. They practice making tiling patterns or...
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Tiling the Plane
Students use pattern blocks and triangular grid paper to review shape names, be introduced to the concept of a tiling of the plane, and determine which pattern blocks tile the plane. They are asked: "Have you ever seen a floor or a wall...
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Junior Architects of America
Young scholars create entries for the Architects of America contest, including a model of a futuristic structure, blueprints, a list of all plane and solid shapes in the structure, a persuasive argument paper that describes why the...
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Shape Recognition
Students explore geometry by analyzing different shapes. In this shape identification lesson, students discuss the characteristics that make certain shapes unique and the same characteristics that cause shapes to look the same. Students...
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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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Marshmallow Towers
Students explore geometry by completing a marshmallow activity in class. In this architecture lesson, students identify the jobs of civil engineers and architects while identifying different geometric shapes as well. Students utilize...
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Chinese Puzzle Story
Students study the Chinese form of tangrams. They read the story, "Grandfather Tang's Story," by Ann Tompert and discuss how tangrams are used to tell the story. Using paper and scissors, they create animal tangrams and write stories...
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Cars, Trucks, and Things that Go Sorting Fun!
First graders sort toys by various attributes. They, in groups, sort toy vehicles by color, size etc. and then explain how they chose to group the toys. They write, draw or dictate an explanation of their sorting methods.
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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...
Pennsylvania Department of Education
Rotational Symmetry of Polygons and Other Figures
Young scholars explore geometry by participating in a shape rotation experiment. In this symmetry lesson plan, students identify the term symmetry and a list of other geometry vocabulary. Young scholars analyze shapes as they are turned...
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ABC and 1-2-3 Farming
Students demonstrate how to alphabetize animal names. In this word study lesson, students identify animals that live on the farm and conduct a favorite farm animal survey. Students order animal pictures in alphabetical order.