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2-D Geometry
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2-D Geometry
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In this unit students will build upon their experiences with geometry in earlier grades. Seventh grade students use these skills to informally construct geometric figures.

Manipulatives, dynamic geometry, and tools like rulers and protractors will be particularly helpful with this unit. A particular focus in this unit is the construction of triangles when given combinations of measures of three angles and/or sides. Students will investigate which of these combinations create unique triangles, more than one triangle, or no triangle at all. Students will use the angle-angle criterion to determine similarity.

Angle relationships generated by intersecting lines including supplementary, complementary, adjacent, and vertical angles are also used in problem solving. Using these relationships, students will make conjectures and solve multistep problems with angles created by parallel lines cut by a transversal. They will also examine both angle sums of polygons and exterior angles.

Students will know and use formulas for the area and circumference of a circle and be able to determine the relationship between them.

Subject:
Mathematics
Material Type:
Unit of Study
Provider:
Michigan Virtual
Author:
Liviya Racine-Creekmore
Date Added:
10/31/2017
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2D Shapes
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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:
Geometry
Mathematics
Material Type:
Lesson
Provider:
Michigan Virtual
Author:
Richard Brisson
Date Added:
03/24/2017
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2-Party Venn Diagram
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2-Party Venn Diagram
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As part of the unit on political parties the students will compare and contrast the two main parties, the Democrats, and the Republicans.

Subject:
Social Science
Material Type:
Lesson
Provider:
Michigan Virtual
Author:
Richard DeVries
Date Added:
12/15/2015
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