Lesson Plan
Curated OER

Paper Pool

For Teachers 5th - 8th
Students analyze the measurements of rectangles. In this analysis lesson, students will investigate patterns by looking at ratios. Students will also hypothesize the probability of a ball going into a certain pocket when playing pool....
Lesson Plan
Curated OER

Finding the Area of a Parallelogram with Translations

For Teachers 8th - 10th
Students calculate the area of a parallelogram. In this geometry lesson plan, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
Lesson Plan
Curated OER

Finding the Area of a Parallelogram with Translations

For Teachers 8th - 10th
Students calculate the area of parallelograms. In this geometry lesson, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.
Lesson Plan
Curated OER

Spatial Relations - Week 9

For Teachers 10th - 12th
In this spatial relations worksheet, students solve three-dimensional problems. They find the total number of triangles in a given figure, the number of line segments that endpoints and use integer points to solve two problems. This...
Lesson Plan
Curated OER

Spatial Relations - Week 9

For Teachers 10th - 12th
In this spatial relations worksheet, students identify the number of triangles in a given figure, identify the number of cubes that a plane intersects, and determine the number of line segments in a given cube. This three-page worksheet...
Organizer
Curated OER

Analyze a Street Map

For Students 4th - 6th
In this street map worksheet, learners analyze a section of a street map of Washington D.C, finding parallel streets, listing streets that form given shapes, and following directions. Answers on page 2.
Lesson Plan
Curated OER

Special Right Triangles

For Teachers 9th - 10th
Students identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...
Lesson Plan
Curated OER

Exploring the Properties of Rectangular Prisms.

For Teachers 9th - 10th
Students define properties of rectangular prisms. In this geometry lesson, students identify the relationship between two and three dimensional objects. They use Cabri technology to graph their figures.
Worksheet
Curated OER

Geometry Regents Bimodal

For Students 9th - 10th
In this geometry activity, students solve problems that are bimodal. They define properties of circles and triangles. There are 117 questions.
Lesson Plan
Curated OER

Properties of Special Parallelograms

For Teachers 8th - 10th
Students identify properties of parallelograms. In this geometry lesson, students label polygons as parallelogram or not. They define and label the properties of a kite.
Lesson Plan
Curated OER

Creating Parallelogram

For Teachers 9th - 12th Standards
Learning how to define vocabulary words related to solving parallelograms will assist your learners in identifying different parallelograms. They use the navigator to view different shapes created by moving the parallelogram around.
Worksheet
Curated OER

The Pascal Problem

For Students 7th - 12th
For this Pascal worksheet, students begin at the center of a rhombus to identify the number of ways the word "Pascal" may be found.  This one-page worksheet contains 1 puzzle.  The answer is provided at the bottom of the page.
Lesson Plan
Curated OER

THE MEAN INDEX CARD

For Teachers 6th - 8th
Students cut an index card to create three similar right triangles and explore the congruencies and proportions that exist. They investigate the properties of lines and concepts of congruency, similarity, tangency and symmetry of...
Lesson Plan
Virginia Department of Education

Properties of Quadrilaterals

For Teachers 9th - 11th Standards
What type of quadrilateral is that? Discover the difference between the types of quadrilaterals. Small groups investigate types of quadrilaterals using geometry software to find their properties. To keep track of the different...
Lesson Plan
Curated OER

Pythagorean Theorem by Graphic Manipulation

For Teachers 7th - 9th
There are many different ways to show a proof of the Pythagorean Theorem.  Here is a nice hands-on paper cutting activity that shows a graphic representation. You can even challenge your young Pythagoreans to come up with their own...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Relation of Polygon Sides to Angles and Diagonals

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Find interior angle measures of polygons by drawing diagonals to create triangles.
Handout
Math Open Reference

Math Open Reference: Polygons

For Students 9th - 10th
Get the definition and properties of a polygon. Then explore such topics as: 1) types of polygon 2) area 3) Perimeter 4) angles associated with polygons and 5) names of polygons.
Unit Plan
Math Is Fun

Math Is Fun: Properties of Regular Polygons

For Students 3rd - 8th
Find a definition of regular polygon, and learn how to calculate the internal angle, external angle, and number of diagonals of a regular polygon. Also, learn how to find the area of regular polygons.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Polygon Classification

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Identifying polygons, their diagonals and their angles
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area and Perimeter of Rhombuses and Kites

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area and perimeter of a rhombus or kite. Students examine guided notes, review guided practice, watch instructional videos and...
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Regular Polygon Centroids

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson shows students different ways to find centroids of regular polygons. The traditional way (using medians) is presented, as well as the triangulation method, the diagonals method,...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Riksjas, Toek Toek: Polygons

For Students 5th - 6th
Explore polygons with Wang, a ricksha puller. Answer his questions and he will give you a free ride!
Lesson Plan
PBS

Pbs Mathline Lesson Plan: Struts'n Stuff [Pdf]

For Teachers 3rd - 5th Standards
Incorporating concepts in algebra, number sense, patterning, data collection, and geometry, this lesson engages young scholars in various hands-on activities to explore the relationship between regular polygons and the number of...
Handout
University of Georgia

University of Georgia: Inter Math: Diagonal

For Students 9th - 10th
This site gives a description of diagonals along with a visual representation. Be sure to follow the links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving diagonals...