Lesson Plan
Curated OER

Polygon Sum Conjecture

For Teachers 9th - 10th
Students calculate the sum of the angles of a polygon. In this geometry lesson, students use the interior angle formula of polygon based on the number of sides of the polygon. They identify the missing angle using algebra.
Lesson Plan
Curated OER

Sketching Prisms

For Teachers 9th - 12th
Students sketch and create nets of different polygons.In this geometry lesson plan, students differentiate prisms from other three-dimensional shapes. They define the properties of prisms.
Lesson Plan
Curated OER

Stained Glass Critter

For Teachers 3rd - 4th
Pupils investigate the the origination of stained glass in the 12th century cathedrals. They practice writing their names in cursive symmetrically. Students also practice how to make a stained glass image.
Worksheet
Curated OER

Circumference and Area

For Students 10th
In this circumference and area worksheet, 10th graders solve nine problems relating to geometric shapes. They find the circumference of a circle and the perimeter of a triangle and a six-sided figure. Students also find the area of a...
Worksheet
Curated OER

Geometry: Angles

For Students 11th - 12th
In this angle worksheet, students find the value for a given variable. They use similar figures, alternate interior angles, side angle side, and other geometric theorems and proofs to determine the value of the given variable. This...
Lesson Plan
Curated OER

Are you in Golden Shape

For Teachers 7th - 10th
Students solve and verify the solution for unknown measures. In this geometry lesson plan, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.
Lesson Plan
Curated OER

Folding Shapes; Are the Sides the Same?

For Teachers 2nd
Second graders explore geometry by experimenting with fold-ables. In this geometric shapes lesson plan, 2nd graders utilize cutout shapes from construction paper which they experiment with by folding. Students examine the symmetry and...
Worksheet
Curated OER

Shapes: Faces, Vertices and Edges

For Students 5th - 6th
In this shapes worksheet, students determine the number of faces, vertices and edges of given shapes, then name the shape. A reference web site is given for additional activities.
Worksheet
Curated OER

Identifying Shapes and Their Features

For Students 5th - 6th
In this shapes worksheet, students identify shapes and the number of  edges and vertices of each. A reference web site is given for additional activities.
Lesson Plan
Curated OER

Mystery Polygon

For Teachers 2nd
Second graders describe a polygon in the form of a riddle.
Lesson Plan
Curated OER

Pasta Research

For Teachers 3rd
Third graders read the story STREGA NONA together as a class and discuss what they know about pasta. They each receive pieces of pasta to glue down on construction paper and write beneath each one what they think it looks like.
Lesson Plan
Curated OER

Tri this Angle!

For Teachers 1st
First graders draw and describe various types of polygons. they investigate their own environments for examples of polygons. After reading the book, The Greedy Triangle, they discuss everyday objects that are polygons. They create shape...
Lesson Plan
Curated OER

Angles: Angles, Angles, Everywhere

For Teachers 6th - 8th
Middle schoolers estimate and accurately measure the size of angles communicate with the appropriate geometric terms and symbols to describe and name angles, lines, line segments, rays
Lesson Plan
Curated OER

Polygons

For Teachers 4th
Fourth graders identify and describe lines, shapes, and solids using formal geometric language. They use Inspiration to create a graphic organizer and outline of polygons.
Lesson Plan
Curated OER

Geo Jammin' - Day 5, Lesson 17: Geo Sakes Alive!

For Teachers 2nd
Second graders, given geometric instructions, try to create their own Geo George puppet.
Lesson Plan
Curated OER

Geo Jammin' - Day 3, Lesson 9: Attribute Attitude

For Teachers 2nd
Second graders read poetry and build their vocabulary through use of the puppet Geo George.
Lesson Plan
Curated OER

Covering Spaces

For Teachers 3rd
Third graders become more familiar with various geometric shapes by completing the games and activities in this lesson plan. They keep track of the number of each shape they use in each of the three ways.
Lesson Plan
Curated OER

Mobius Band

For Teachers 10th
Tenth graders discuss sides of a shape and how to collect data correctly. In this geometry lesson, 10th graders examine shapes and count the surfaces on the shape. They read the history of Mobius Band and relate it to surface area.
Lesson Plan
Curated OER

Symmetry

For Teachers 6th
Sixth graders explore symmetry and discuss the difference between a rotation and reflection. Using hands-on activities, such as folding paper shapes, they discover how to find the lines of symmetry and symmetrical characteristics. As a...
Lesson Plan
Curated OER

Why Study Fractals?

For Teachers 9th - 12th
Learners explore the concept of fractals. In this fractals lesson, students use the website to research where fractals occur in nature. Learners research what fractals are and how fractals are used to solve real world problems.
Activity
Curated OER

Shape Witch

For Teachers 6th
Student make a witch using geometric shapes. Students practice the skills of cutting and pasting two or more shapes together. Students name triangle, rectangle, square and circle and match to corresponding shape.
Lesson Plan
Curated OER

Got Milk?

For Teachers 6th - 8th
Students measure the angles of a milk carton. They identify and label acute, right, and obtuse angles. Using appropriate tools, students determine the volume of a cube or a rectangular prism. Students complete worksheets to...
Lesson Plan
Curated OER

Angle Pairs

For Teachers 9th - 12th
High schoolers practice identifying right, vertical, and adjacent angles using a Smartboard. They then determine measurements of all of the angles when only one measurement is given.
Lesson Plan
Pyro Innovations

Get into Shape

For Teachers K - 1st Standards
Shapes are so fun! Little ones explore, identify, and create shapes using tangrams or pattern blocks. The activity is intended to stimulate critical thinking while engaging learners through play and shape identification. Each child will...