Curated OER
That's So Square
Second graders are introduced to circles, triangles and parallelograms. As a class, they create the shape with their bodies and are shown the shapes in their actual size. To end the lesson, they sketch each shape and identify their...
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Math: Shapes and More Shapes
Students locate lines of symmetry in regular polygons and predict the number of lines of symmetry in an octagon. In three different polygons, they construct all lines of symmetry and after making their prediction about the octagon,...
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Make-and-Take: Staff Development
Students complete activities to learn a phenomenological approach to polygons. In this polygons lesson plan, students use the materials in the directions to make demonstration models. Students use a wooden wagon model and liquid to learn...
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Scale Factor- Surface Area and Volume
Students calculate the surface area and volume of shapes. In this geometry lesson, students create different scales and calculate the volume and area for each shape. They compare and contrast between the different scales and shapes.
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Space Tiling with Captain Planet
Fifth graders Apply the symmetry and angle properties of polygons, using symmetry and angle properties of polygons to solve practical problems. They study tessellates and explain why a shape tessellates.
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More Prisms/Nets
Students calculate the volume and surface are of three-dimensional shapes. In this geometry lesson, students use the nets to prove their calculations of shapes. They identify the different parts of a solid using the nets.
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Pyramids & Prisms: Guler's Formula
Sixth graders compare and contrast two-dimensional shapes to three-dimensional shapes. After watching a demonstration, they make their own shapes using nets printed on paper. To end the lesson, they use the shapes they made and...
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Congruence with Robot Gobot
Students identify the properties of solids and polygons. For this geometry lesson, students identify the different measurements of a triangle. They use congruence parts and theorem to prove their answer.
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Marshmallow Geometry
Third graders create 2D and 3D shapes using marshmallows and toothpicks. In this geometry lesson, 3rd graders create their shapes and document the number of faces, edges, corners, angles, and sides. They share one shape and its...
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Surface Area of Rectagular Prisms
Sixth graders investigate the area of polygons. In this geometry lesson plan, 6th graders calculate area of prisms using geometric formulas. They work with prisms and other rectangular shapes.
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Surface Area of Prisms
Students calculate the surface area of different prisms. In this geometry instructional activity, students identify the shapes of solids based on the properties of that solid. They calculate the surface area using nets and properties of...
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Sketching Cylinders
Students create nets of cylinders. In this geometry lesson, students calculate the surface area of cylinders and other solids. They show their understanding of three-dimensional shapes by solving problems.
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Measuring and Predicting Capacity
Students investigate geometric shapes through volume and dimensions. In this geometry instructional activity, students measure, weigh, and calculate sizes and volume based on estimation and calculation. They review important vocabulary...
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Euler Characteristic
Students identify the different properties of Euler's Characteristics. In this geometry lesson, students identify the shape and surface a polygon. They relate the concept of Euler to solving real world problems.
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Get the Turtle to the Pond
Students solve problems. In this math lesson, students write solutions using LOGO commands in order to help get the turtle to the pond.
Pennsylvania Department of Education
The Weight of Things
Students explore weight. For this math lesson, students predict which item weighs more and discuss how they arrived at their decision. Students weigh several items to determine which weighs more.
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Classifying Transformations
Learners analyze different polygons by shapes and sides. In this geometry lesson, students differentiate between similar and congruent polygons. They name the different polygons based on the number of sides.
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Dissecting the Cube
Students investigate the volume of cones. In this geometry lesson, students define the formula to find the volume of cones. They define the concept of having to dissect a three dimensional figure and find the volume.
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Polygons And Polyhedra
Students recognize and name two-dimensional and three-dimensional geometric figures. One group of students will extend the study of polygons to quadrilaterals while another group of students will extend the study of polygons to...
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Sort It Out and Match It Up
Young scholars identify objects that are the same shape and size. They compare and contrast attributes of two-and three-dimensional objects using appropriate vocabulary. Pupils justify an extension of a geometric pattern to explain...
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Fractions and Panes
Young scholars recognize the fractional values of window panes as part of the whole window. In this window panes lesson, students listen to a story about window panes and sing a song. Young scholars look at pictures of windows and write...
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Learning About Volume
Learners explore the concept of volume. They develop formulas for volume of prisms. Then use their formulas to find missing dimensions of various prisms such as height, length, width, radius, and diameter.
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Color Me Square
Second graders identify and describe basic geometric solids. Working as a class, 2nd graders describe geometric solids using the proper vocabulary and counting faces, bases, corners, and edges. In pairs, students use a computer drawing...
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Faces of a Cube
Students identify and correctly name three-dimensional solids; cones, spheres, and cubes. In this three-dimensional figures lesson, students build a cube by matching colored square faces to a correct word. Students then explore...