Lesson Plan
PBS

Pbs Mathline Lesson: Geometry, It's a Perfect Fit [Pdf]

For Teachers 3rd - 5th Standards
This two-part geometry lesson plan has learners identify, describe, and classify two-dimensional shapes. Students engage in hands-on activities including identifying shapes in the classroom, creating patterns with shapes, identifying...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Decorating Boxes

For Students 9th - 10th
How do you print a ribbon on a box? The challenge is to figure out which of the patterns can be folded into a box with an orange ribbon printed all the way around it?
Unknown Type
abcteach

Abcteach: Geometry

For Teachers Pre-K - 1st Standards
[Free Registration/Login Required] This resource has an assortment of teacher-created geometry activities for elementary and primary students. Printable two-dimensional shapes, area and perimeter worksheets, board games, rules and...
Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 5.g What Is a Trapezoid? (Part 2)

For Teachers 4th - 6th Standards
The purpose of this task is for students to compare different definitions for trapezoids. Aligns with 5.G.B.4.
Activity
Scholastic

Scholastic: Max's Math Adventures: Max's Fantastical Zoo

For Teachers 3rd - 5th
Use this rhyming description of Max's Fantastical Zoo to make some amazing animals from geometric shapes. There is a teacher's guide for easy lesson planning.
Lesson Plan
Alabama Learning Exchange

Alex: Cutting the Cheese

For Teachers 6th - 7th Standards
The students will find the area of each two dimensional figure on a net of a triangular prism. In groups, students will cut out the net and create a triangular prism. Groups will then discuss how to find the lateral area and the total...
Lesson Plan
Alabama Learning Exchange

Alex: Thinking Outside the "Box"

For Teachers 6th - 8th
The middle schoolers will find the area of each two dimensional figure on a net of a rectangular prism. In groups, students will cut out the net and create a rectangular prism. Groups will then discuss how to find the lateral area and...
Lesson Plan
Alabama Learning Exchange

Alex: Painting the Pyramids

For Teachers 6th - 8th Standards
The students will find the area of each two dimensional figure on a net of a square pyramid. In groups, students will cut out the net and create a square pyramid. Groups will then discuss how to find the lateral area and the total...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Fire Hydrant

For Students 3rd - 8th Standards
Discover how the geometric shape of an object directly relates to its usefullness in this math challenge from the NCTM Math Challenges for Families collection. A one page activity that you can print or download.
Handout
Science Struck

Science Struck: A Comprehensive Printable List of Geometry Formulas

For Students 9th - 10th Standards
Provides a list of area and perimeter formulas for two-dimensional shapes and volume and surface area formulas for three-dimensional solids.
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Cross Sections

For Teachers 9th - 10th Standards
This lesson utilizes the concepts of cross-sections of three-dimensional figures to demonstrate the derivation of two-dimensional shapes.
Lesson Plan
Better Lesson

Better Lesson: Geometry Shape Book

For Teachers 3rd Standards
Third graders develop their understanding of the importance of different 2-dimensional shapes by finding real world examples.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Straight Lines in Various Shapes

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on determining if there are straight lines in various two dimensional shapes.
Activity
University of Cambridge

University of Cambridge: Maths and Sports: National Flags

For Students K - 1st
During the Olympic and Paralympic Games many national flags will be on display. This activity explores 2D shapes, angles and symmetries in the context of flag designs, and is designed to be accessible to primary pupils at Key Stage 2.
Lesson Plan
Science Buddies

Science Buddies: Shape Changing With the Cyber Squad

For Teachers 3rd - 5th Standards
In this project, you will make 2-dimensional templates, called nets, that fold up into 3-dimensional (3-D) shapes. By making shapes of different sizes, you will be able to see how 3-D shapes change with size. In your findings you will...
Lesson Plan
University of Texas

Inside Mathematics: Sorting Shapes [Pdf]

For Teachers 4th - 7th Standards
This task challenges a students knowledge of 2-dimensional geometrical shapes to sort shapes and to design a shape that has a given set of attributes.
Lesson Plan
University of Texas

Inside Mathematics: Don's Shapes [Pdf]

For Teachers 1st - 3rd Standards
This task challenges a student to demonstrate understanding of the attributes of two-dimensional shapes.
Unit Plan
Texas Education Agency

Texas Gateway: Finding Lateral and Total Surface Area

For Students 7th - 8th
Given concrete models and nets (2-dimensional models) of prisms, pyramids, and cylinders, the student will find and determine the lateral and total surface area.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Cut the Cake

For Students 2nd - 6th Standards
A math challenge where geometry, measurement, and problem solving meet. Explore the properties of three dimensional shapes when you discover how six friends can equally divide a nine inch square chocolate cake. A one page activity from...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Visualizing

For Students 3rd - 8th
Is seeing believing? Explore visualizing and spatial reasoning with three dimensional shapes in this challenge from the NCTM Math Challenge for Families collection. Discover why visualization is essential skill in real world situations.
Activity
Other

Coloring 2 D Sides

For Students 9th - 10th Standards
Learners use the colored portion of the 3-D object to color the correct side of the 2-D drawing. This applet consists of 20 problems. [Requires Java.]
Handout
The Math League

The Math League: Figures and Polygons

For Students 3rd - 8th Standards
This website has basic definitions for most polygons, regular and irregular.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classify Objects as Rectangles, Squares, Circles, or Triangles

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] Students practice classifying various two dimensional shapes as rectangles, squares, circles or triangles.
Interactive
Government of Alberta

Learn Alberta: Math Interactives: Classifying Quadrilaterals

For Students 4th - 6th
This multimedia that includes a short video [1:19] and other interactive activities on Learn Alberta math resource looks at real-world examples of shape classification in the investigation and solving of crimes. The accompanying...

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