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2D Representations of 3D Objects

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2D Representations of 3D Objects

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This lesson unit is intended to help teachers assess how well students are able to visualize two-dimensional cross-sections of representations of three-dimensional objects. In particular, the lesson will help you identify and help students who have difficulties recognizing and drawing two-dimensional cross-sections at different points along a plane of a representation of a three-dimensional object.

Subject:: Mathematics; Geometry
Material Type:: Assessment; Lesson Plan
Author:: Haley Dotson
Date Added:: 08/03/2020

2D Rotation Using Matrices

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2D Rotation Using Matrices

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This Demonstration illustrates the concept of rotating a 2D polygon. The rotation matrix is displayed for the current angle. The default polygon is a square that you can modify.

Subject:: Mathematics; Geometry
Material Type:: Activity/Lab; Diagram/Illustration; Homework/Assignment; Interactive; Simulation; Teaching/Learning Strategy
Author:: Mito Are; Valeria Antohe
Date Added:: 08/03/2020

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2D Shapes

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Unit abstract

The following lessons come from the Everyday Math (version 4) curriculum. I have adapted the lessons by including face-to-face small group lessons, specific technology activities, and center activities (some being small group/buddy and some being independent). I will be using a group rotation model during the implementation of this unit. Each day will include a 1 hour block of time, with 20 minutes for each rotation.

Students will learn about attributes of two dimensional shapes. Students will learn about defining and nondefining attributes of shapes. Students will explore shapes through a building activity. Students will combine two dimensional shapes to make composite figures.

Lesson 7.5 Attributes of shapes

Lesson 7.7 Defining and Nondefining Attributes

Lesson 8.1 Building shapes with Defining Attributes

Lesson 8.5 Combining 2-Dimensional Shapes

Subject:: Mathematics; Geometry
Material Type:: Lesson
Provider:: Michigan Virtual
Author:: Richard Brisson
Date Added:: 03/24/2017

2.G Partitioning a Rectangle into Unit Squares

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2.G Partitioning a Rectangle into Unit Squares

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

2.G Partitioning a Rectangle into Unit Squares

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2.G Partitioning a Rectangle into Unit Squares

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

3D Geometry - Naming 3D Shapes, Calculating Volume and Surface Area of Prisms, Cylinders, and Pyramids

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3D Geometry - Naming 3D Shapes, Calculating Volume and Surface Area of Prisms, Cylinders, and Pyramids

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https://www.educreations.com/lesson/view/3d-geometry/29389361/NOTE: These are video notes! They are to be used AFTER instruction of these concepts or possibly as a precursor to the actual activities. The link provided is a 27 minute video that I have used for notes with my 6th grade honors class. Obviously students shouldn't sit down and watch a 27 minute video all at once but it could be used in a part series as students are discovering these concepts in your class with actual activities. I love Educreations because it's really easy to make a video, get a link that you can embed into any online classroom space, and a large portion of the storage space is free! YAY FREE!

Subject:: Mathematics; Geometry
Material Type:: Lecture; Lecture Notes
Author:: Tabatha Myers
Date Added:: 08/03/2020

5.G Always, Sometimes, Never

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5.G Always, Sometimes, Never

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

5.G What do these shapes have in Common?

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5.G What do these shapes have in Common?

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

6.G Nets for Pyramids and Prisms

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6.G Nets for Pyramids and Prisms

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

6.G Walking the Block

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6.G Walking the Block

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

6.G Wallpaper Decomposition

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6.G Wallpaper Decomposition

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

7.G Approximating the area of a circle

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7.G Approximating the area of a circle

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

7.G Approximating the area of a circle

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7.G Approximating the area of a circle

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

7.G Circumference of a Circle

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7.G Circumference of a Circle

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

7.G Circumference of a Circle

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7.G Circumference of a Circle

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

7.G Rescaling Washington Park

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7.G Rescaling Washington Park

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

7.G Wedges of a Circle

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7.G Wedges of a Circle

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

8.G, 8.EE Different Areas?

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8.G, 8.EE Different Areas?

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

8.G.A.4 Are They Similar?

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8.G.A.4 Are They Similar?

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018

8.G.A.5 Street Intersections

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8.G.A.5 Street Intersections

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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

Subject:: Geometry
Material Type:: Activity/Lab
Provider:: Illustrative Mathematics
Provider Set:: Illustrative Mathematics
Author:: Illustrative Mathematics
Date Added:: 02/16/2018