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Scale factors: Ratios and Proportions
Students create building and models using scale factors. In this geometry lesson plan, students apply the properties of ratio and proportion to solve problems. They identify the means and extremes property of cross multiplication.
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Similar Triangles - Applied Problems
Students differentiate between similar and congruent triangles. In this geometry activity, students identify the angles of triangles using the similarity theorem. They apply concepts of triangles to the real world.
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Sketching Prisms
Students sketch and create nets of different polygons.In this geometry lesson, students differentiate prisms from other three-dimensional shapes. They define the properties of prisms.
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Circles and Pi
Students identify the relationship between the radius and Pi. For this geometry lesson, students calculate the circumference and area of a circle. They create visuals to help them see how the circumference relates to Pi.
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Shapes and Introduction to Geometry
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...
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Two-Dimensional Geometric Shapes
Students participate in hands-on activities to explore the shapes in their environment.
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Quadrilaterals
Students construct a variety of four-sided figures using a K'NEX Geometry Set. They view and discuss pictures of shapes, then in small groups they construct as many four-sided shapes as possible using the K'NEX Rods and Connectors. As a...
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Application of Properties of Quadrilaterals in the Coordinate Plane
Students apply definitions and theorems to verify special quadrilaterals
using coordinate geometry. They apply the slope formula, the midpoint
formula, and the distance formula to justify that a given quadrilateral is a
parallelogram....
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Quilt Squared
Learners study West Virginia quilts. In this mathematics lesson, students use symmetry, geometric shapes, and patterns to create their own quilt square.
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Pythagoreum Theorem
Students practice assessing how to apply the formulas for the area of parallelograms and triangles. They recount the contributions of Pythagoras and apply the theories of the Pythagorean theorem in a group project to calculate the...
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Count Them Up
Pupils calculate area using the geoboard application on their calculators. They use a TI-73 calculator to find the areas of the shapes provided in the accompanying worksheet. Screen shots and instructions for creating shapes in the...
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Going out of Business: Pythagorean Theorem
Students find the length of diagonals. In this Pythagorean theorem lesson, students use the Pythagorean theorem to determine the length of diagonals.
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Learning Colors and Shapes
In this colors and shapes worksheet, students look over a box full of different shapes, color the triangles red, squares blue, rectangles yellow, ovals green, circles purple and the diamonds orange.
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An Introduction to Quadrilaterals
High schoolers explore the concept of quadrilaterals. In this quadrilateral lesson, students play with a floor tile applet to see that there are many types and characteristics of quadrilaterals including parallelograms, trapezoids,...
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Fall Plowing: Drawing to Scale
Middle schoolers explore coordinates and scale drawings. In this drawing to scale lesson, students discuss symmetrical and asymmetrical shapes, geometric, shapes and estimation of size. Middle schoolers recreate a portion of a...
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Investigation - Patterns
Learners create a pattern out of pattern blocks. In this math lesson, students work with a partner to investigate the pattern they have. Within that group, learners continue to design the pattern by adding the next two pieces....
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Squares, Square Roots, and Exponential Expressions
Students explore the concepts of square roots and exponential expressions. In this square root and exponential expression lesson, students complete an investigation called Building A Square Patio. Students use color tiles to develop the...
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Area and volume, Prisms and Pyramids
In this geometry worksheet, students solve for the volume and area of given polygons. They find the surface area and identify the different parts of the polygon. There are 10 questions.
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Median of a Trapezoid
Students find the median of trapezoids and other polygons. In this geometry instructional activity, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
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Surface Area of Pyramids
Students identify the surface area of pyramids and other polygons. For this geometry lesson, students find the different measurements for the different parts of a polygon. They use the surface area formula to solve for the surface...
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Symmetry
Students identify the different symmetry in polygons. In this geometry instructional activity, students identify line, rotational and point symmetry in different objects. They find the symmetry with 90% accuracy.
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Euler Characteristic
Students identify the different properties of Euler's Characteristics. For 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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Quiz: Similarity
In this similarity instructional activity, students use the characteristics of similar figures to determine the length of one side of a polygon, the height of a tree, or the shortest side of a triangle. They also identify similar...
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Geometry
In this geometry worksheet, students determine what if 6 different shapes are a circle, square, triangle or a rectangle. Students bubble in their answers.