Lesson Plan
Curated OER

Geometry in Tessellations

For Teachers 3rd - 12th
Students examine tessellations and their geometric properties. Students explore the concept of tessellations and lines, planes, angles, and polygons. Students experiment with the area and perimeter of polygons. Students analyze...
Lesson Plan
Curated OER

Tessellations: Geometry and Symmetry

For Teachers 9th - 12th
Students examine tesselllations and their geometric properties. They have a better knowledge of polygons, can identify types of symmetry in tessellations. Also students use visulization, spatial reasoning, and geometric modeling to...
Lesson Plan
Curated OER

Geometry: Area Project

For Teachers 6th
Sixth graders identify and use area formulas for finding the area of geometric shapes.
Lesson Plan
Curated OER

Geometry In the Yard

For Teachers 5th - 7th
Students are responsible for creating a border around a triangular garden spot, of which they know the measurements for two sides. They use the Pythagorean Theorem to calculate the third side and complete the garden.
Worksheet
Curated OER

Geometry Journal: Midpoint

For Students 9th - 12th
In this midpoint worksheet, learners solve 2 short answer problems. Students prove the midpoint of a segment using the definition of midpoint. Learners given an example of using midpoint in everyday life.
Worksheet
Curated OER

Geometry Journal: Distance

For Students 10th - 12th
In this distance learning exercise, students determine how to find the distance between points.  They use the distance formula and justify their answers. This two-page learning exercise contains 2 problems.  Answers are listed...
Lesson Plan
Curated OER

Getting in Shape

For Teachers K - 1st
Students create tangram rockets out of shapes and practice shape recognition.
Activity
Illustrative Mathematics

Dilating a Line

For Teachers 9th - 12th Standards
High School geometers verify through experimentation certain properties about dilations. This multi-step problem challenges them to construct examples of dilations to verify specific facts, the final step provides an opportunity to more...
Lesson Plan
Curated OER

Exploring Perimeter

For Teachers 3rd - 5th
Students explore perimeter. In this geometry and measurement instructional activity, students create squares and rectangles using given perimeters. Students construct four sided shapes with given perimeters using the computer program...
Lesson Plan
Curated OER

Searching for Angles and Lines

For Teachers 6th - 8th
Students work to find and reinforce concepts related to lines and angles. They identify the characteristics of shapes that have one, two, and three dimensions. The students also work on definitions related to the geometry of shapes.
Worksheet
Curated OER

Points, Lines, and Line Segments - Homework 16.1

For Students 4th - 5th
In this geometry worksheet, students complete a homework assignment in which they name 3 lines and line segments. They write parallel, intersecting, or perpendicular, to describe the relationships between 4 pairs of lines. They draw an...
Worksheet
Curated OER

Explore Perimeter and Area - Homework 18.1

For Students 3rd - 6th
In this geometry worksheet, students complete a homework assignment in which they draw rectangles that have the same area but different perimeters and vise versa. They draw a rectangle with a given area and perimeter.
Interactive
Curated OER

Proportional Parts

For Students 9th - 10th
In this geometry worksheet, students identify what makes triangles similar and congruent. They use SSS,SAS and AA to identify the correct ratio of each triangle. There are 15 questions.
Interactive
Curated OER

Using Logical Reasoning

For Students 10th
In this geometry worksheet, 10th graders analyze and solve logic puzzles.  The one page interactive worksheet contains five multiple choice questions, provides a hint, and is self checking.
Lesson Plan
Curated OER

Vector Investigation: Car Storm Chaser

For Teachers 6th - 11th
Students investigate the relationship between vectors and motion. In this geometry instructional activity, students create a system that exemplifies the principles of motion. They solve for the acceleration, velocity and displacement.
PPT
Curated OER

Transformations

For Teachers 7th - 9th
For any study of upper-level geometry, this presentation could be of good use. It defines three important concepts: transformation, reflection, and rotation. Although brief, this presentation could easily be used in tandem with problems...
Lesson Plan
World Wildlife Fund

Take 6

For Teachers 3rd - 5th Standards
Investigate the various properties of the number six with this elementary math lesson. From simple addition, subtraction, multiplication, and division problems to the creation of hexagonal tessellations, this lesson covers all aspects of...
Learning
School Mathematics Project

Resource Sheets

For Students 4th - 8th Standards
This extensive and far-reaching collection of worksheets puts a new twist on many basic concepts. Learners use multiplication to trace a path from one point to another, tile a plane by converting between improper and proper fractions,...
Printables
K-5 Math Teaching Resources

Angles Template

For Students 4th - 6th Standards
Young mathematicians learn to see geometry from different angles with this simple printable resource. Providing multiple visual examples of angles, this simple document can be used as an instructional tool, a skills practice...
Lesson Plan
Curated OER

Unit on Spepherical Trigonometry

For Teachers 10th
Tenth graders analyze characteristics and properties of two and three dimensional shapes. In this geometry lesson plan, 10th graders apply Spherical Easel Technology to help them decipher geometric shapes. They compare and contrast the...
Lesson Plan
Curated OER

Preparation and Transition to Two-Column Proofs

For Teachers 10th - 11th
Students investigate proofs used to solve geometric problems. In this geometry lesson, students read about the history behind early geometry and learn how to write proofs correctly using two columns. The define terminology valuable to...
Lesson Plan
Curated OER

Investigating Area Using Tangrams

For Teachers 10th
Tenth graders connect the history of geometry to problem solving. In this geometry lesson plan, 10th graders investigate polygons through hands on manipulatives and solve problems relating to parallelograms and triangles. They calculate...
Lesson Plan
Curated OER

Quadrilateral Explorations-Grade Nine

For Teachers 9th
Ninth graders investigate quadrilaterals.  In this geometry lesson, 9th graders examine and classify quadrilaterals using the slope, midpoint and distance formulas.  Additionally, students create various quadrilaterals given...
Lesson Plan
Curated OER

The Overlooked Regular Pentagon

For Teachers 10th
Tenth graders discuss the history of geometry as it relates to pentagons. In this geometry lesson, 10th graders solve problems of a pentagon inscribed inside of a circle using ratio. They review other properties for shapes of polygons...