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Length, Perimeter, and Area
Young scholars explore the concepts of length, perimeter and area. Students develop an understanding of length, perimeter, and area. Young scholars calculate the area and perimeter of random shapes and calculate the area and perimeter of...
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Geometry in Tessellations
Students examine tessellations and their geometric properties. Students explore the concept of tessellations and lines, planes, angles, and polygons. Students experiment with the area and perimeter of polygons. Students analyze...
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Identifying Horizontal, Vertical and Oblique Lines
Third graders watch the teacher draw a horizontal line across the board. They listen to the definition of horizontal and has a student demonstrate putting their body in a horizontal position. This is repeated with a vertical line. The...
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Picket Fence Around the Garden
Students design different shaped plots and determine the perimeter, area and shape of each. They compare the shapes that have the same area but may have different perimeters.
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Geo-Mat
Young scholars review plane figures by playing a game that resembles "Twister." They listen to directions to locate a large example of the figure which is placed on the floor.
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Folding Fractions
Students create a set of fraction circles using a paper folding technique. They fold 10 inch circles of paper into the indicated fractions, identify the fractions, and use them to show equivalency.
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Symme"tree"
Young scholars practice drawing lines of symmetry after the teacher draws shapes on the board. They create a class symme"tree" using only symmetrical shapes to decorate it.
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Lines, Rays, and Angles
Third graders read "Pigs on the Ball" by Amy Axelrod and discuss the geometry concepts presented in the book. They use Twizzler sticks and pipe cleaners to represent lines, rays and angles.
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Area is Always Flat, But It's Not Always Regular
Students calculate the area of regular and irregular polygons by counting the number of whole an half squares within the polygon. They determine the formula for regular polygons and label the area in square units.
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Congruent Triangles Postulates
Learners discover three lettered postulates that prove triangles congruent.
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Shape Matters More!
Students investigate shapes as the area changes while the perimeter remains the same. Students demonstrate the shape/perimeter/area relationship using simulations and physical models.
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Make a Design by Plotting Points
Young scholars plot points on graph paper to make designs. They color their designs.
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Geometry Geopardy
Third graders participate in a game in order to review geometric concepts.
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Fun With Symmetry
Students manipulate shapes to find multiple lines of symmetry. They use color to visualize the lines of symmetry.
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Geometric Twins
Students investigate congruent shapes using dot paper to visualize, draw, and duplicate different congruent shapes.
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It Figures!
Students judge, compare and construct two-dimensional figures using a variety of materials.
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Geo Jammin' By DeSign - Day 2, Lesson 8: Can You Please Give Me Directions?
Learners participate in a guided reading experience by following directions to cut out tangrams. They listen to the directions and cut as the reading progresses.
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Geo Jammin' By DeSign - Day 3, Lesson 15: The Quiltmaker's Gift
Students listen to a read aloud of The Quiltmaker's Gift by Jeff Brumbeau finding examples of symmetry in the illustrations in the book.
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Triangles
Third graders recognize geometric shapes with acute angles, make geometric shapes with acute angles on geoboards, and draw acute angles on geopaper.
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Puzzling Perimeters
Third graders use estimation, fractions and decimals to determine the perimeter of objects in the classroom. They are given a worksheet with a list of the items on it. The worksheet has columns beside each of the items for estimation and...
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Similar and Congruent Triangles
Students create and classify different types of triangles using an online geo-board. They explore the concepts of similar and congruent as they discover how to draw similar and congruent triangles.
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Exploring Area/Perimeter Through Coordinate Geometry
Students explore area and perimeter through coordinate geometry using student literature, hands-on manipulatives, and the Internet.
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Internet Field Trip on Fractions and Geometry
Students take an Internet field trip to research fractions. ESOL strategies include using pattern block manipulatives and pairing ESOL and non-ESOL students on computers.
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Learning about Shapes with Tangrams and the Net
Students use tangrams, student literature, and Websites to explore shapes.