Curated OER
Right On/Right Angles
Help your class identify right triangles using this resource. This series of slides involves pictures of clocks with hands forming right angles. It's an interesting way to introduce this topic.
Curated OER
Triangles
Students identify triangles in the real world and construct their own triangle using drinking straws. They explore abstract triangles and find additional geometric shapes such as trapezoids. Students discuss similar shapes and examine...
Curated OER
Primary Geometry
Students identity simple geometric shapes. For this early geometry lesson, the teacher introduces students to triangles, squares, and rectangles, then students identify and classify the shapes as they are found in the classroom. To...
Curated OER
Exploring Geometric Mean
Student identify the solution using geometric mean. In this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
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Monument Museum
Learners design monuments, taking into account what is known about geometric shapes and measuring. Students create a museum complete with monuments and descritions of the monuments. Learners provide guides at each monument in order to...
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Physical Education Meets Geometry
Learners create geometric shapes with a jump rope. In this interdisciplinary lesson, students review the different shapes while getting some physical activity.
Curated OER
Exploring Geometric Mean
Students solve problems using geometric means. In this geometry lesson plan, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
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Shapes...the Beginning of Geometry
Students identify and name basic shapes and points. In this elementary geometry lesson, students use printable cut outs to name circles, triangles, and squares before playing a game with them. They play a game of "Pin the Tail on the...
Curated OER
Polygon Necklaces
Students explore geometry by creating jewelry in class. In this polygons instructional activity, students identify different shapes and characteristics while creating polygon figures from construction paper. Students utilize a...
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Shape and Figure descriptions
In this shape and figure descriptions worksheet, students name the shape described and draw it. Students complete this for 2 shapes.
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Identifying Shapes
In this shape worksheet, students draw lines to match shapes with their names. A reference web site is given for additional activities.
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Area of complex shapes with 90' angles
In this area learning exercise, students figure out the area of complex shapes containing 90' angles. Students find the area for 2 shapes.
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Metallic Mosaic
Pupils engage in a instructional activity about polygons while creating a mosaic pattern. They concentrate upon creating a pattern that is geometric and has the look of a quilt design. The instructional activity includes steps to...
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Zome System
Get hundreds of interactive activity plans using the Zome Modeling System. Among dozens of lessons, a first exposure to similar triangles can be very visual for the learner. Here, young geometers explore the number of different shapes...
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Shapes, Shapes Everywhere!
Sixth graders investigate the geometric concept of shapes. They locate shapes in their immediate environment and label them according to basic shape. The shapes that are found are recorded by the teacher on chart paper and any...
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Geometry
In this geometric shapes worksheet, students analyze the 6 shapes and write the name of each one. There is no word bank and no examples.
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Net (Open Cylinder)
In this geometric shape worksheet, learners cut out a net pattern. Students tape or paste the net to make an open cylinder. There are no questions.
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Shape It
Fourth graders use math software and geoboard paper to design basic shapes. They write individual definitions for the geometric shapes based on what they see in the shapes. They apply their background knowledge of the shape as they write...
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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.
PBS
Geometry: Hide and Seek
A geometry game that resembles Battleship is the foundation for hide and seek where "hiders" draw shapes on coordinate planes and "seekers" must guess the shape and its location based on questions and clues. Reproducible, paper-sized...
Curated OER
City Streets: A Fold-up of a Street Lined with Buildings
After walking in a nearby neighborhood, have your class create this amazing city street pop-up. They study the facades of the buildings they see, focusing on geometric line, shape, and architecture. They then draw, cut, and create a city...
National Security Agency
Classifying Triangles
Building on young mathematicians' prior knowledge of three-sided shapes, this lesson series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy...
Curated OER
Marshmallow Figures
Learners enjoy making 3-D figures while learning about rectangular prisms, pyramids, vertices, edges, and faces. After a lecture/demo, students use marshmallows, toothpicks and a worksheet imbedded in this lesson to create 3 dimensional...
Texas Instruments
Drawing a Line Tangent to a Circle
Explore lines tangent to a circle. In this math lesson plan, students manipulate circles and lines on a TI calculator. They draw a circle and analyze perpendicular lines intersecting the circle in only one place. This activity...