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Interactive Geometry Dictionary: Areas in Geometry
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The applets in this Interactive Geometry Dictionary (IGD) will allow students an ...

The applets in this Interactive Geometry Dictionary (IGD) will allow students an opportunity to explore finding the area of some common shapes. The applets demonstrate how to find the area of a triangle using the area of a parallelogram, which in turn can be found using the area of a rectangle. This tool also supports the lesson "What's My Area" cataloged separately.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Mathematics and Children's Literature
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In this three-lesson unit, students participate in activities in which they focus ...

In this three-lesson unit, students participate in activities in which they focus on connections between mathematics and children’s literature. Three pieces of literature are used to teach geometry and measurement topics in the mathematics curriculum, i.e. using and describing geometric figures, estimating the volume of an irregular solid, and exploring the need for a standard unit of length. Activity worksheets and ideas for extension are included.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Martha H. Hopkins
Ladybug Adventures
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The activities in this four-lesson unit enable students to use their knowledge ...

The activities in this four-lesson unit enable students to use their knowledge of number, measurement, and geometry to solve interesting problems. Planning and visualizing, estimating and measuring, and testing and revising are components of the ladybug activities. Students design "virtual paths" that enable a ladybug to either hide under a leaf or go through a maze. They develop navigational skills by testing their path and revising it. Two interactive Java applets (Ladybug Mazes and Hiding Ladybug, cataloged separately) support student solutions.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Carol Midgett
Molecular Geometry
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Learn to identify different molecular shapes, to understand the interactions that create ...

Learn to identify different molecular shapes, to understand the interactions that create these shapes, and how to predict a molecule's shape given certain information about it. Explore these concepts using three-dimensional computer models and answer a series of questions to reinforce your understanding.

Subject:
Engineering
Education
Mathematics
Geometry
Chemistry
Physics
Material Type:
Activity/Lab
Data Set
Lecture Notes
Provider:
Concord Consortium
Provider Set:
Concord Consortium Collection NGSS Aligned Records
Author:
The Concord Consortium
Solving Playground Network Problems
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In this activity, learners use cooperation and logical thinking to find solutions ...

In this activity, learners use cooperation and logical thinking to find solutions to network problems on the playground. Learners act both as computer routers, figuring out with each other how to effectively get data to the place it's being sent, and as the actual data, because the learners travel various edges of a network to get to their destination or "home" point. Learners use geometry skills to determine the most efficient routes in the network.

Subject:
Computer Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Exploratorium
Gordon and Betty Moore Foundation
National Science Foundation
The Exploratorium
What Does it Take to Construct a Triangle?
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In this geometry lesson students classify triangles and explore side lengths of ...

In this geometry lesson students classify triangles and explore side lengths of triangles to discover the Triangle Inequality Theorem. The resource includes an exploratory activity and student sheet (pdf), class discussion prompts, a small group spinner activity, extension suggestions, and links to two related resources (cataloged separately).

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Foundation and Leadership Public Schools, College Access Reader: Geometry - Lesson Plans and Exams
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A structured geometry program teacher edition of daily lesson plans and teacher ...

A structured geometry program teacher edition of daily lesson plans and teacher supports to accompany the College Access Reader: Geometry student edition.

Subject:
Geometry
Material Type:
Textbook
Provider:
CK-12 Foundation
Provider Set:
CK-12 FlexBook
Author:
Fauteux, Michael
Zapata, Rosamaria
Science of NHL Hockey: Hockey Geometry
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From the passes NHL players make to their teammates, to the shots ...

From the passes NHL players make to their teammates, to the shots they take to score, players in every position are constantly using geometry when playing the game. The lines, angles and curves on the ice are also examined. "Science of NHL Hockey" is a 10-part video series produced in partnership with the National Science Foundation and the National Hockey League.

Subject:
Education
Mathematics
Geometry
Physics
Material Type:
Simulation
Provider:
NBC Learn
Provider Set:
Science of NHL Hockey
Author:
National Hockey League
National Science Foundation
NBC Learn
Geometry Tools: Angles & Reflections
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Students learn about common geometry tools and then learn to use protractors ...

Students learn about common geometry tools and then learn to use protractors (and Miras, if available) to create and measure angles and reflections. The lesson begins with a recap of the history and modern-day use of protractors, compasses and mirrors. After seeing some class practice problems and completing a set of worksheet-prompted problems, students share their methods and work. Through the lesson, students gain an awareness of the pervasive use of angles, and these tools, for design purposes related to engineering and everyday uses. This lesson prepares students to conduct the associated activity in which they “solve the holes” for hole-in-one multiple-banked angle solutions, make their own one-hole mini-golf courses with their own geometry-based problems and solutions, and then compare their “on paper” solutions to real-world results.

Subject:
Mathematics
Geometry
Material Type:
Lesson
Provider:
TeachEngineering
Author:
Aaron Lamplugh
Andi Vicksman
CU Teach Engineering (a STEM licensure pathway), Engineering Plus Degree Program, University of Colorado Boulder
Devin Rourke
Maia Vadeen
Malinda Zarske
Nathan Coyle
Russell Anderson
Ryan Sullivan
Geometry (Teacher's Edition)
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CK-12 Geometry Teacher's Edition covers tips, common errors, enrichment, differentiated instruction and ...

CK-12 Geometry Teacher's Edition covers tips, common errors, enrichment, differentiated instruction and problem solving for teaching CK-12 Geometry Student Edition. The solution and assessment guides are available upon request.

Subject:
Geometry
Material Type:
Textbook
Provider:
CK-12 Foundation
Provider Set:
CK-12 FlexBook
Author:
Kershaw, Jem
Kramer, Melissa
Zwack, Teresa
Using Geometry to Design Simple Machines
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This video is meant to be a fun, hands-on session that gets ...

This video is meant to be a fun, hands-on session that gets students to think hard about how machines work. It teaches them the connection between the geometry that they study and the kinematics that engineers use -- explaining that kinematics is simply geometry in motion. In this lesson, geometry will be used in a way that students are not used to. Materials necessary for the hands-on activities include two options: pegboard, nails/screws and a small saw; or colored construction paper, thumbtacks and scissors. Some in-class activities for the breaks between the video segments include: exploring the role of geometry in a slider-crank mechanism; determining at which point to locate a joint or bearing in a mechanism; recognizing useful mechanisms in the students' communities that employ the same guided motion they have been studying.

Subject:
Engineering
Education
Mathematics
Geometry
Physics
Material Type:
Lecture
Provider:
M.I.T.
Provider Set:
M.I.T. Blossoms
Author:
Daniel D. Frey
MIT BLOSSOMS
Junior Architects
Conditions of Use:
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In this 4-lesson unit, students identify, compare, and analyze attributes of two- ...

In this 4-lesson unit, students identify, compare, and analyze attributes of two- and three-dimensional shapes, and develop geometric vocabulary. Students use basic linear measurement, understand and create scale representations, and explore perimeter and area measurement as they design their clubhouses. Activity sheets (pdf), lesson extensions and other commentary are provided.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Jennifer Suh
Building a Box
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This lesson helps students develop spatial visualization skills and geometric understanding by ...

This lesson helps students develop spatial visualization skills and geometric understanding by exploring the different nets that can be folded into a cube. The lesson is placed in the context of a young woman who is trying to build a jewelry box. The lesson provides an activity sheet, a link to a helpful applet (Cube Nets, cataloged separately), questions for students and teachers, and ideas for assessment and extensions.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Author:
Dr. Bob Mann
Exploring a Complex Space-Filling Shape
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In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional ...

In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star. Learners use pyramid patterns to assemble tri-pyramids and then tape eight tri-pyramids together to form a stellated rhombic dodecahedron. Learners also calculate the volume of the complex shape.

Subject:
Geometry
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Exploratorium
Gordon and Betty Moore Foundation
National Science Foundation
The Exploratorium
Building Three-Dimensional (3D) Structures
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In this activity, learners practice drawing 3D structures in two dimensions. Learners ...

In this activity, learners practice drawing 3D structures in two dimensions. Learners draw cube stacks from five different points of view. Use this activity to help learners discern between 2D and 3D as well as explore reflections and perspective.

Subject:
Geometry
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Exploratorium
Gordon and Betty Moore Foundation
National Science Foundation
The Exploratorium
Fractal Tool
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Using this tool, students build these classic fractals: the Koch snowflake, a ...

Using this tool, students build these classic fractals: the Koch snowflake, a fractal tree, a reduced square, and the Sierpinksi triangle. As these shapes grow and change using an iterative process, students can observe patterns in the images created and in the table of values as the fractals progress through several stages.

Subject:
Mathematics
Geometry
Numbers and Operations
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Geometric Solids
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This tool allows you to learn about various geometric solids and their ...

This tool allows you to learn about various geometric solids and their properties. You can manipulate each solid, seeing it from every angle. You can also color each shape to explore the number of faces, edges, and vertices. With that information, you are challenged to investigate the following question: For any polyhedron, what is the relationship between the number of faces, vertices, and edges?

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Exploring Tessellations (Grades K-2)
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In this activity, learners repeat patterns in two and three dimensions to ...

In this activity, learners repeat patterns in two and three dimensions to create tessellations. This activity combines the creativity of an art project with the challenge of solving a puzzle. This lesson features three investigations that are appropriate for varying grades and levels.

Subject:
Geometry
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Exploratorium
Gordon and Betty Moore Foundation
National Science Foundation
The Exploratorium
Scaling Cubes
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In this activity, learners explore scale by using building cubes to see ...

In this activity, learners explore scale by using building cubes to see how changing the length, width, and height of a three-dimensional object affects its surface area and its volume. Learners build bigger and bigger cubes to understand these scaling relationships.

Subject:
Geometry
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Exploratorium
Gordon and Betty Moore Foundation
National Science Foundation
The Exploratorium
Dynamic Paper
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With this versatile resource a teacher can create a variety of materials ...

With this versatile resource a teacher can create a variety of materials to use with students: nets for three-dimensional shapes, graph paper, number lines, number grids, tessellations, two-dimensional shapes, and spinners. Each mode has flexible design options. The results can be downloaded as a printable PDF activity sheet or as a web-friendly JPEG image.

Subject:
Mathematics
Geometry
Material Type:
Interactive
Lesson Plan
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations