Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Geometric Solids

For Students 9th - 10th Standards
An interactive game to find number of edges, surfaces and vertices of different geometric shapes.
Lesson Plan
University of Texas

Inside Mathematics: Which Shape [Pdf]

For Teachers 2nd - 4th Standards
This task challenges a student to use knowledge of geometrical attributes to identify and describe shapes.
Handout
Science Struck

Science Struck: List of Different Types of Geometric Shapes

For Students 4th - 8th Standards
A comprehensive list of 2D shapes and 3D solids with everything from a triangle to a dodecahedron. Includes illustrations and short descriptions of attributes for each.
Activity
Exploratorium

Exploratorium: Science Snacks: Soap Bubble Shapes

For Students 9th - 10th
Using straws and soap, you can create geometric shapes to make a colorful art display when light shines through them.
Handout
ArtLex

Art Lex: Islam and Islamic Art

For Students 9th - 10th
A dictionary entry for Islam and Islamic art with numerous illustrations of representative works in all media, including architecture, ceramics, metalwork, textiles, and manuscripts. Includes useful cross-references to related terms and...
Website
Purple Math

Purplemath: Geometric Formula Review

For Students 10th - 12th Standards
Need to freshen up on your geometric formulas? This explanation focuses on some basic formulas that should be committed to memory such as area, volume, perimeter, and more.
Lesson Plan
Science Buddies

Science Buddies: Tiling With Spidrons

For Teachers 9th - 10th
If art and math are both passions of yours, this project is meant for you! Spidrons are geometric forms made from alternating sequences of equilateral and isosceles (30 degrees, 30 degrees, 120 degrees) triangles. Spidrons were...
eBook
Mathigon

Mathigon: Algebra: Figurate Numbers

For Students 9th - 10th Standards
There are many other sequences that are based on certain geometric shapes. These sequences are often called Figurate numbers, numbers that can be represented using geometric shapes. Examples include square, triangle, and tetrahedral...
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 2.5 Geometry Software for Reflections

For Students 9th - 10th Standards
See how geometry software expresses geometric shape reflections.
Interactive
Doina Popovici

Math Play: Geometric Figures Game

For Students 5th - 7th Standards
An online game where students use their skill to classify geometrical figures.
Interactive
Doina Popovici

Math Play: 3 D Shapes

For Students 5th - 7th Standards
Name various 3D shapes in this online game.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Tilt of Earth's Axis and the Four Seasons

For Teachers 9th - 10th Standards
This task gives young scholars a chance to explore the effects of the Earth's tilt and rotation using a simple geometric model of Earth-Sun interaction that shows why the seasons occur. Aligns with G-MG.A.1.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Make Your Own Puzzle

For Teachers 1st - 2nd Standards
Students will cut a square into four pieces, and then will put those pieces in an envelope for another student to put together. The purpose of this task is to give students a hands-on experience with composing and decomposing geometric...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg How Many Leaves on a Tree? (Version 2)

For Teachers 9th - 10th Standards
In this task, students must estimate the number of leaves on a large tree, taking into account various complex factors such as the area shaded by the tree, the area of irregularly shaped leaves, the uneven distribution of leaves, the...
Activity
TeachEngineering

Teach Engineering: Determining Densities

For Teachers 6th - 9th
Students will use two different methods to determine the densities of a variety of materials and objects. The first method involves direct measurement of the volumes of objects that have simple geometric shapes, while the second uses the...
Activity
Science Buddies

Science Buddies: Project Ideas: How to Make an Aircraft Invisible to Radar

For Students 9th - 10th
In this engineering science fair project, students will determine which 3-D geometric shapes scatter light the most. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction,...
Lesson Plan
PBS

Pbs: Black Kingdoms of the Nile

For Teachers 9th - 10th
A geometry lesson that examines the history and structure of ancient pyramids and engages students in constructing pyramid models. A comprehensive lesson that considers students with diverse learning styles. Math concepts introduced...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Ice Cream Cone

For Teachers 9th - 10th Standards
You have been hired by the owner of a local ice cream parlor to assist in his company's new venture. The company will soon sell its ice cream cones in the freezer section of local grocery stores. The manufacturing process requires that...
Unit Plan
TED Talks

Ted: Ted Ed: The Origin of Countless Conspiracy Theories

For Students 9th - 10th
Why can we find geometric shapes in the night sky? How can we know that at least two people in London have exactly the same number of hairs on their head? And why can patterns be found in just about any text - even Vanilla Ice lyrics?...
Activity
Other

Art With Mrs. Filmore: 1st Grade Art Lessons

For Teachers K - 1st
This site offers a variety of art lessons that use various media. Each project includes instructions and pictures of the students' completed artwork.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg, G Gmd Global Positioning System Ii

For Teachers 9th - 10th Standards
Satellites communicate with a GPS device and establish the distance between them and their locations. The set of points at a fixed distance from a satellite form a sphere so when the GPS receives its distance from a given satellite, this...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Toilet Roll

For Teachers 9th - 10th Standards
Picture a roll of toilet paper; assume that the paper in the roll is very tightly rolled. Assuming that the paper in the roll is very thin, find a relationship between the thickness of the paper, the inner and outer radii of the roll,...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg How Many Cells Are in the Human Body?

For Teachers 9th - 10th Standards
About how many cells are in the human body? The purpose of this task is for students to apply the concepts of mass, volume, and density in a real-world context. Aligns with G-MG.A.2.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt, G Mg Seven Circles Iii

For Teachers 9th - 10th Standards
In this task, students are shown circle formations where an inner circle is surrounded by a set of circles and all circles are touching. In the first situation, all circles have the same diameter. In the second, the inner circle is...

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