Lesson Plan
Curated OER

Reflections

For Teachers 5th
Fifth graders create a reflection of a poygon using a Mira. They discover that a line connecting a vertiex of a polygon and the corresponding vertex of its reflection is perpendicular to the line of reflection. Students create a glide...
Lesson Plan
Curated OER

Polygon Perimeters

For Teachers 4th - 7th
Students complete worksheets where they calculate the perimeter of polygons. In this perimeter of polygons lesson plan, students divide complex shapes into simple shapes to find the perimeter.
Lesson Plan
Curated OER

Triangle Wars

For Teachers 5th - 8th
Young scholars explore geometry by participating in a class card game. In this triangle instructional activity, students utilize playing cards with shapes on them which they group up and discard, similar to "Old Maid." Young scholars...
Lesson Plan
Curated OER

Stained Glass Polygons

For Teachers 4th - 6th
Students follow directions to make a stained glass window design of regular and irregular polygons with specific geometric elements. In this geometry lesson plan, students also analyze other classmate's designs.
Worksheet
Curated OER

Cube Net

For Students 3rd
In this geometry and art worksheet, 3rd graders trace and cut out a cubic net to fold and glue together to learn about the dynamics of three-dimensional figures and shapes.
Lesson Plan
Curated OER

Perimeter

For Teachers 5th
Fifth graders create math word problems. For this geometry lesson, 5th graders define perimeter and discover how to find the perimeter of a rectangle, a square and a regular polygon. Students write word problems on finding the...
Worksheet
Curated OER

Islamic Patterns

For Students 5th - 6th
In this geometry and religion instructional activity, students examine a black line picture of an Islamic pattern before identifying the shapes in the pattern. They color the pattern by following the directions given at the bottom of the...
Lesson Plan
Curated OER

Can You Create a Congruent Figure

For Teachers 5th
Fifth graders discover congruent figures by investigating graphs and manipulatives.  In this geometry lesson, 5th graders identify congruent figures and patterns with their classmates.  Students collaborate in groups to create...
Worksheet
Curated OER

Understanding Angles

For Students 9th - 11th
In this geometry worksheet, students identify the different measure of each angle. They rotate the rays around and make observations about the angles formed. There are 15 questions and lots of examples.
Lesson Plan
Curated OER

Twenty Green Gates

For Teachers 2nd
Second graders explore mathematics by participating in a pattern building activity. In this geometric construction lesson, 2nd graders discuss a story problem in which a gate needs to be built from triangles and trapezoids up to a...
Lesson Plan
Curated OER

Symmetry All Around

For Teachers 1st - 2nd
Young scholars explore geometry by creating a quilt square. In this symmetry lesson plan, students identify a list of items, designs, insects and animals which have either rotational or line symmetry. Young scholars investigate...
Worksheet
Curated OER

Congruent Figures

For Students 3rd - 4th
In this geometry worksheet, students select the shape that is congruent to the one given. There are four multiple choice questions for students to complete.
Lesson Plan
Curated OER

"Alphabet City and City by Number" by Stephen T. Johnson; "Shapes, Shapes, Shapes" by Tana Hoban

For Teachers 6th - 8th
Students review the definition of angles by identifying those in the classroom and putting them on a graphic organizer.
Lesson Plan
Curated OER

Chords of a Circle

For Teachers 10th
In this geometry worksheet, 10th graders calculate the length of a chord and the distance from the center of a circle or radius. They compare diameter, chords and radius. There are 10 questions with an answer key.
Worksheet
Curated OER

Geometry: Plane Figures

For Students 5th - 6th
In this plane figure worksheet, students complete 4 multiple choice questions, determining which solid figure can be traced to make a given plane figure. A reference web site is given for additional activities.
Worksheet
Curated OER

Area - Parallelograms and Trapezoids

For Students 4th - 6th
In this finding the area of geometric shapes worksheet, students observe parallelograms and trapezoids and use the information given to find their areas. Students solve 4 problems.
Lesson Plan
Curated OER

Area and Perimeter of Polygons

For Teachers 10th
In this geometry worksheet, 10th graders calculate the perimeter and area using the specific formula for that polygon. There are 5 questions with an answer key.
Worksheet
Curated OER

Geometric Probability

For Students 10th
In this geometry worksheet, 10th graders determine the probability of an event occurring based on the geometric sketch.  The one page worksheet contains fourteen problems.  Answers are included. 
Worksheet
Curated OER

Geometric Probability

For Students 10th
In this geometry worksheet, 10th graders determine the probability of an event occurring based on the geometric sketch.  The one page worksheet contains sixteen problems.  Answers are included. 
Worksheet
DK Publishing

Finish the Picture

For Students Pre-K - 1st Standards
Youngsters add some shapes to this castle drawing before analyzing its geometry. They count the circles, triangles, rectangles, and squares. The objectives here include drawing, recognizing, and counting shapes as well as writing numbers...
Activity
Noyce Foundation

Cut It Out

For Students K - 12th Standards
Explore the mathematics of the paper snowflake! During the five lessons progressing in complexity from K through 12, pupils use spatial geometry to make predictions. Scholars consider a folded piece of paper with shapes cut out....
Lesson Plan
Curated OER

Discovering Conic Sections in the Motion of Heavenly Bodies

For Teachers 9th - 12th
Math scholars study conics and how they are used today. In this mathematical lesson, pupils construct and slice cones after viewing a demonstration. 
App
Oddrobo Software

King of Math Junior

For Students K - 6th Standards
Do your students have what it takes to be the king of math? Find out with this fun skills practice game that covers a wide range of topics from counting and basic operations to measurement and fractions.
Worksheet
PreKinders

Christmas Tree Pattern Block Mat

For Students Pre-K - 1st
Put the tree back in geometry! Explore shapes and celebrate Christmas while using pentagon, square, and triangle pattern blocks to create a Christmas tree.

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