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1st Grade - Counting Rectangles, Squares, and Triangles in Composite Figures
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CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach first graders about counting rectangles, squares, and triangles in composite figures.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
1st Grade - Identify Basic Shapes
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach first graders an overview of rectangles, squares, circles and triangles.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
1st Grade - Identifying of Quarter-circles and Semi-circles
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach first graders an overview of quarter-circles and semi-circles.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
28 and It's Upward and Onward
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Some Rights Reserved
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In this open-ended investigation, students use visualizing skill and work systematically to explore surface area. Learners use linking cubes to build three-dimensional objects with exactly 28 faces exposed. Ideas for implementation, extension and support are included.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
Date Added:
12/05/2009
2D vs 3D Shapes Lesson Plan
Conditional Remix & Share Permitted
CC BY-SA
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This is a lesson plan that will help educators teach Kindergarten students about 2D and 3D shapes, how to identify, sort them and design their own using marshmallows and toothpicks. Assessments and Rubrics are included to assess students on identifying, sorting, and designing 2D and 3D shapes.The image used in the Image Title was a screen shot taken from the Youtube Assessment that is linked to the lesson plan. It is Titled "2D or 3D Shapes: Under the Sea Math Brain Break"  by Move and Groove Math It is licensed under CC BY-SA 4.0 

Subject:
Elementary Mathematics
Other
Material Type:
Activity/Lab
Assessment
Diagram/Illustration
Interactive
Lesson
Lesson Plan
Media Object
Teaching/Learning Strategy
Author:
Amy Martin
Date Added:
07/10/2023
2.G Partitioning a Rectangle into Unit Squares
Unrestricted Use
CC BY
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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:
Mathematics
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
07/02/2018
2.G Partitioning a Rectangle into Unit Squares
Unrestricted Use
CC BY
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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:
Mathematics
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
07/02/2018
2 Rings
Read the Fine Print
Some Rights Reserved
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This activity helps students develop concepts and language related to position by experimenting with the size and relationships between two circles in a qualitative way. They use terms such as outside, touching and overlapping. The Teachers' Notes page includes suggestions for implementation and discussion questions. Students then can move to a follow-up activity, 3 Rings, cataloged separately.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
Date Added:
02/05/2007
2nd Grade - Basic Shapes
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders an overview of lines, curves, vertices, and sides of 2d shapes.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Faces Edges and Vertices of Solids
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders about counting vertices and sides in various shapes.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Identify Basic Shapes
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders an overview of rectangles, squares, circles and triangles.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Identify Less Common Basic Shapes
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders an overview of ellipses, trapezoids, rhombi, and polygons.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Identify Shapes within Composite Shapes
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders about counting the number of different 2d shapes in a composite figure.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Identifying Parallel and Perpendicular Lines
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders about identifying parallel and perpendicular lines.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Identifying Semicircles and Quarter Circles
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
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This short video and interactive assessment activity is designed to teach second graders an overview of quarter-circles and semi-circles.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
2nd Grade - Visually Evaluating Parallel Lines Cut by a Traversal
Conditional Remix & Share Permitted
CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders about visually evaluating parallel lines cut by a traversal.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018
3 Rings
Read the Fine Print
Some Rights Reserved
Rating
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This activity helps students develop concepts and language regarding the size and positional relationship possibilities of three circles in the plane in a qualitative manner. They use terms such as overlapping, inside, and touching as they work systematically to find all possible arrangements. The Teachers' Notes page includes suggestions for implementation, discussion questions, and ideas for extension. This activity can be a follow-up to "2 Rings" cataloged separately.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
NRICH
Date Added:
03/05/1998
3rd Grade - Basic Shapes
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
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This short video and interactive assessment activity is designed to teach third graders an overview of lines, curves, vertices, and sides of 2d shapes.

Subject:
Elementary Mathematics
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/25/2018