Lesson Plan
Curated OER

Angles - Unlocking Geometry

For Teachers 3rd - 5th
Students investigate the concept of angles and how they are used in geometry. They construct polygons using various types of angles and then classify them according to their physical properties. Students use a computer program in order...
Lesson Planet Article
Curated OER

Analyzing 3-D Shapes and 2-D Representations

For Teachers 3rd - 6th
Students can analyze 3-D objects better with actual physical models and by also drawing 2-D representations of them.
Lesson Plan
Curated OER

Geometry and Rubik's Cube

For Teachers 9th - 12th
Students explore geometry using a Rubik's Cube. In this 2-D and 3-D shapes lesson, students use the Rubik's Cube to find the center, edge and corner pieces. Students then find the dimensions of the Rubik's Cube and read the solution...
Lesson Plan
Curated OER

Interactivate - Geometry in Tessellations

For Teachers 8th - 11th
Young scholars use an on-line worksheet to experiment with patterns of tessellations in regular polygons. As students observe different shapes in the "Tessellate" Activity they complete a data table and practice making predictions for...
Unit Plan
Mathematics Vision Project

Module 5: Modeling with Geometry

For Students 9th - 12th Standards
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Worksheet
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Curated OER

Properties of Polygons, Parallel Sides, and Right Angles

For Students 2nd - 4th Standards
Have fun with shapes! Third graders read a set of instructions and circle the shape in the description. They work on recognizing parallel sides and right sides. Use this resource as homework after your geometry lesson.
Worksheet
Curated OER

1st Geometry

For Teachers 3rd - 6th
In this geometry instructional activity, students choose the multiple choice answer to 15 questions involving several different elements of geometry.
Lesson Plan
Curated OER

Shape Hunt

For Teachers Pre-K - 1st
Students explore two-dimensional and solid shapes. In this shapes and patterns geometry lesson, students work with a partner to create identifiable objects using tangrams. Students describe the attributes of their shape and their partner...
Unit Plan
Arizona Department of Education

Area and Perimeter of Regular and Irregular Polygons

For Teachers 3rd - 6th Standards
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other...
Lesson Plan
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Curated OER

Classifying Three-Dimensional Shapes

For Teachers 7th
Compare geometric solids based on their properties. Your emergent geometers use spaghetti and marshmallows to build models so they can examine the number of faces, edges, and vertices on polyhedra of their own creation. Resource includes...
Lesson Plan
Curated OER

Parallel and Perpendicular Lines

For Teachers 4th - 6th
Learners study parallel and perpendicular lines. In this parallel and perpendicular lesson plan, pupils explore 2-D shapes and determine if the sides are parallel or perpendicular.
Lesson Plan
Curated OER

Tiling Tessellations

For Teachers 2nd - 4th
Learners explore tessellations. In this shapes and geometry lesson, students describe the attributes of many of the shapes displayed on an Elmo. Learners create examples of tessellations using pattern blocks.
Lesson Plan
Curated OER

Shapes and Introduction to Geometry

For Teachers 2nd - 4th
Students make a quilt. In this geometry instructional activity, students discuss patchwork quilts and learn some different geometric shapes and patterns that are commonly used. Students explore designs with triangles and squares and then...
Lesson Plan
Arizona State University

Roundup Shapes

For Teachers K - 1st Standards
Let's study 2-D shapes! Young mathematicians compare and classify shapes according to attributes. They evaluate shape riddles and predict the shape being described. Here is the website where you can find the instructional...
Worksheet
Curated OER

Symmetry Using Polygons

For Students 8th - 10th
Working on symmetry in your class? If so, this worksheet might be for you. Learners observe different triangles and quadrilaterals, determine which are symmetrical, draw in the lines of symmetry, and color the symmetrical shapes. In...
Worksheet
Curated OER

Shapes

For Students 1st - 3rd
In this shapes worksheet, students trace each of the 3D shapes and then write the name for the shape. Students complete 6 problems.
Worksheet
Curated OER

To Be a Triangle Or Not To Be a Triangle?

For Students 10th
In this triangles worksheet, 10th graders solve and complete 10 different problems that include applying the Triangle Inequality Theorem. First, they use the illustrated triangles and the data table to test the theorem. Then, students...
Worksheet
Curated OER

Topology - The Mathematics of Distortion

For Students 7th
In this topology worksheet, 7th graders solve and complete 12 different problems that include shapes and math distortion. First, they use the forms of capital letters as guides, stretch or bend the shape in the first column into as many...
Lesson Plan
Curated OER

Falling Into Geometry Through Paper Art

For Teachers K
Students explore geometric shapes.  In this kindergarten geometry lesson plan, students create a fall quilt consisting of three different paper geometric quilt squares that when assembled form a scarecrow, a pumpkin, and a...
Lesson Plan
Curated OER

Kindergarten: Geometry in Our World (Centers)

For Teachers K
Students identify attributes in real-life objects and models of solids and connect these attributes to characteristics of shapes such as circles, triangles, squares, and other rectangles. They discuss the ability of the object to roll,...
Lesson Plan
Curated OER

Laboratory: Modeling Molecular Shapes

For Teachers 10th - 12th
In this molecules worksheet, students answer post lab questions about types of bonds, factors that determine polarity and molecular geometry. They calculate electronegativity differences in atoms and determine the types of bonds between...
Worksheet
Curated OER

Solve Word Problems with Geometry

For Students 7th - 12th
In this geometry worksheet, students solve word problems having to do with lines, angles, shapes, area, perimeter, and more. Students complete 57 problems total.
Worksheet
Curated OER

Intermediate Matching -- Shapes

For Students 3rd - 5th
Students match the following 10 shapes by drawing a line from their names to their pictures: circle, square, rectangle, cylinder, cube, sphere, oval, triangle, octagon and hexagon. This geometry learning exercise provides excellent...
Lesson Plan
Richland County School District One

Falling Into Geometry Through Paper Art

For Teachers K Standards
New-to-school learners create a fall quilt consisting of three different paper geometric quilt squares. They use various geometric shapes that when assembled will form a scarecrow, pumpkin, and a crow. Assembly will require sorting...

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