Lesson Plan
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Discovering Euler's Theorem

For Teachers 9th - 10th
Students identify different parts of a prism and polyhedra. In this geometry lesson, students identify the number of faces, edges and sides of polygons. They solve problems by recognizing patterns.
Worksheet
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Lines of Symmetry

For Students 6th - 8th
In this math worksheet, students practice drawing the lines of symmetry for each of the polygons. They also draw mirror images for the figures.
Lesson Plan
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Identifying Lines of Symmetry

For Teachers 8th - 10th
Students calculate the lines of symmetry using polygons. In this geometry instructional activity, students graph, compare and estimate using collected data. They identify different attributes to the polygons based on their sides.
Worksheet
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Circumference and Area

For Students 6th - 8th
For this geometry worksheet, learners answer 10 questions regarding, circumference, area, time, calculating the radius if given a diameter, and polygon recognition.
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Surface Area with Polydrons

For Teachers 3rd - 4th
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...
Lesson Plan
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Effect on Surface Area and Volume

For Teachers 8th - 10th
Students identify the effect the change of dimensions causes for the volume and surface area. In this geometry lesson, students compare perimeter, area and volume as they play around with the dimensions of the polygons. They discuss...
Lesson Plan
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Troublesome Towers

For Teachers 8th - 10th
Students observe solids and identify parts that make up the surface area. For this geometry lesson, students calculate the surface are of solids and cones. They find polygons and solids in the real world.
Worksheet
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Equations Worksheet

For Students 6th - 8th
In this math instructional activity, middle schoolers create and solve equations with the help of Algebra Tiles. Then they apply formulas for geometry to find the perimeter of a polygon.
Worksheet
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Concept of Volume: the Unit Cube

For Students 10th
In this geometry worksheet, 10th graders are asked to find the volume of different polygons. They use the formula for volume dealing with the different shapes. There are 60 problems.
Worksheet
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Similar Figures

For Students 7th - 9th
In this similar figures worksheet, students identify corresponding sides and corresponding angles of given polygons.  They identify similar figures.  This three-page worksheet contains 18 problems.
Worksheet
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Seven Sets of Area Problems

For Students 10th - 11th
In this area activity, students solve for the area of rectangles, parallelograms, triangles, trapezoids, kites, regular polygons, circles, and surface area.  The worksheets is divided into seven different sets of problems.
Worksheet
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Geometry

For Students 7th - 8th
In this line and angles instructional activity, students explore basic geometry vocabulary.  They classify polygons.  Students determine the area and perimeter of given shapes.  They examine the parts of a circle,...
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Technology Integrated Lesson

For Teachers 8th - 10th
Students investigate symmetry in the real world. In this geometry lesson, students inter-relate math and technology. They create and name a variety of polygons.
Lesson Plan
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Compass Designs

For Teachers 8th - 10th
Students investigate the properties of two and three dimensional objects. In this geometry lesson, students differentiate polygons based on similarity and congruence. They make observation and interpret the data.
Lesson Plan
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Measuring Body Angles

For Teachers 8th - 10th
Learners use technology to graph and compare angles. In this geometry lesson, students range of motion in the environment. They identify the missing parts of polygons using similarity and congruence.
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Mathematics in Robotics

For Teachers 10th - 12th
Young scholars build and create using math. In this geometry lesson, students differentiate between congruent and similarity as they observe polygons. They create robots with different functions using properties of geometry.
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Speedy Area

For Teachers 8th - 10th
Students calculate the speed, rate and distance. In this geometry lesson, students calculate the area and perimeter of polygons. They perform an activity with a CEENBoT and calculate the distance and speed.
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Cones, Cylinders, Spheres

For Teachers 9th - 11th
Students classify polygons by name and shape. In this geometry lesson, students identify the lateral surface of each conic. They differentiate between cones, cylinders and spheres.
Worksheet
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Quiz: Beginning Congruent Triangle Proofs

For Students 10th - 11th
In this congruent triangle proof worksheet, students write theorems to prove the congruence of given triangles. This one-page worksheet contains three given polygons to prove congruence.
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Small and Large Squares

For Teachers K - 1st
Young mathematicians classify squares according to attributes. They sort squares according to specific attributes. Students explore squares in repeating patterns and order squares according to size. Engaging extension activities are...
Lesson Plan
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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...
Interactive
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Square Roots and Quadratics.

For Students 9th - 11th
In this algebra worksheet, students solve for the square root and calculate and solve roots. There are 10 questions with an answer key.
Worksheet
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1st Geometry

For Teachers 3rd - 6th
In this geometry worksheet, students choose the multiple choice answer to 15 questions involving several different elements of geometry.
Worksheet
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Perimeter and Area

For Students 9th
In this perimeter and area instructional activity, 9th graders solve 17 various types of problems, mostly word problems related to determining the area or perimeter of a geometric shape. They also determine the area and perimeter of...